Best OmniFilter Water Softeners (2 Endorsed Picks) Reviews in 2024

Here are the top 2 OMNIFilter water softener reviews to guide you in your search. Read on for this in-depth coverage on 2 of the best water softeners. It touches everything you need to know about the OM32KCS and OM26K water softeners.

These water softeners are especially recommended if you live in an area where hard water runs through the main pipes. Also, if you regularly use well water, you should consider getting one of these.

Having an OmniFilter tank will stop that dry and itchy feeling you get after taking a shower. If your appliances break down without a clear reason, that may likely be due to hard water.

Prevent this problem by getting either the OM32KCS or OM26K softener tanks. Read on to find out the advantages of these 2 models compared with Big Boss water softeners.

We Compared For You

Pentair OMNIFilter OM32KCS
OMNI Filter OM26K-S-S06 Om26K Twin Tank Water...
OMNIFilter OM32KCS-S-S06 Water Softener
OMNIFilter OM26K-S Twin Tank Water Softener
32,000 grain
26,000 grain
Best Feature/Benefit
Reduces hardness, scale, iron and calcium and lime
Reduces rust, sediment, chlorine, odors and other invisible substances
Star rating
Pentair OMNIFilter OM32KCS
OMNIFilter OM32KCS-S-S06 Water Softener
32,000 grain
Best Feature/Benefit
Reduces hardness, scale, iron and calcium and lime
Star rating
OMNI Filter OM26K-S-S06 Om26K Twin Tank Water...
OMNIFilter OM26K-S Twin Tank Water Softener
26,000 grain
Best Feature/Benefit
Reduces rust, sediment, chlorine, odors and other invisible substances
Star rating

Specs & Features

#1. OM32KCS OmniFilter

OMNIFilter water softener tank
Model number OM32KCS-S-S06
Product Type OMNIFilter Water Softener, tank water softener
Grain Capacity 32,000
Color White
Best for 2 to 4 people (whole house), hard water area
Manufacturer Pentair Water Filtration
Item Weight 87.5 pounds
Shipping weight 93 pounds
Product Dimensions 13.2 x 25 x 44
Batteries Required? No
Power AC adapter included (and replaceable with Class II, 12v, 150 mA)
Operating ambient temperatures 34°F to 120°F (1°C to 49°C)
Operating water temperatures 35°F to 100°F (1°C to 38°C)
Water pressure ranges 20 to 125 psi (1.38 “ 8.6 bar) 20 to 100 psi (1.38 to 6.89 bar) for Canada

Use OmniFilter water softener preferably with sodium chloride. Like pellet, block, or coarse solar OMNIFilter compatible salt.

Here are the system features of this system for hard water:

features of OMNIFilter water softener for hard water
  • Recharge style: Meter on demand
  • Media tank size: 10 x 35 inches
  • Resin volume 1.00 cubic foot
  • Salt storage 220 lbs
  • Drain water rate 3.9 GPM
  • Server connection size: 1-inch NPT
  • Drain connection size: ½ inch NPT
  • Recharge or brine connection size: …œ-inch NPT
  • Installation space requirements: 23″ D x 13″ W x 45″ H

And here are the dimensions:

dimensions of OMNIFilter water softener for hard water

#2. OM26K-S Twin Tank OmniFilter

twin tank water softener review
Model number OM26K-S-S06 OM26K
Product Type Twin Tank OMNIFilter Water Softener, tank water softener
Grain Capacity 26,000
Color Black
Best for Water usage of 1 to 2 people (whole house), hard water area
Manufacturer Pentair Water Filtration
Item Weight 87 pounds
Product Dimensions 15.5 x 15.5 x 58
Batteries Required? No
Power AC adapter included (and replaceable with Class II, 12v, 150 mA)
Operating ambient temperatures 34°F to 120°F (1°C to 49°C)
Operating water temperatures 35°F to 100°F (1°C to 38°C)
Water pressure ranges 20 to 125 psi (1.38 “ 8.6 bar) 20 to 100 psi (1.38 to 6.89 bar) for Canada

Use preferably with sodium chloride pellet salt

Features & Benefits – OmniFilters

Which water softener is the best? OMNIFilter may fit the bill. Let’s look at each salt-based OMNIFilter feature and its benefits. These are:

OM32KCS Twin Tank OmniFilter

  • The system follows a space-saving design. It fits nicely in your cabinet.
  • This whole house water softener is also great for water usage of 3 to 5 people in a whole house.
  • The unit lessens water hardness in a hard water area. As the best water softener, OMNIFilter also prevents scale and iron developments. It also prevents calcium and lime build-up.
  • The salt-based system is appropriate for city water. It’s also fit for well water usage.
  • The unit comes as 1 easy installation kit. It’s a feature of the best water softener.
  • Lastly, this salt-based OMNIFilter also features a digital display. And it has an OMNIFilter drain tubing. This best water softener includes the bypass valve and corresponding fittings.

OM26K-S OmniFilter

  • The twin tank design is a great feature. It provides maximized salt storage.
  • It’s also great for a single person or a couple living together in a household.
  • The unit reduces whole house water hardness. And it also lessens the development of scale and iron including calcium and lime.
  • Lastly, this OMNIFilter unit also features a digital display. And it has an OMNIFilter drain tubing. It also features a bypass valve and fittings.

Included Parts

This salt-based hard water softener includes the following:

OMNIFilter water softener included parts

OM32KCS OmniFilter

  • The water salt-based softener tank, valve, and water bypass
  • A connector kit
  • One water drain line flow Control + water drain fitting
  • A water drain line tubing (inside the salt tank)
  • Tubing clamp
  • One wall transformer, and
  • An instruction manual

OM26K-S OmniFilter

salt-based water softener tank
  • The salt-based water softener tank (including valve and water bypass)
  • The salt tank and cover (brine well assembly inside)
  • One connector kit
  • A water drain line flow control + water drain line fitting
  • One brine line tubing, including end inserts (found inside the brine well)
  • The water drain line tubing
  • A tubing Clamp
  • One wall transformer, and
  • An instruction manual

Process & Functions

Which water softeners are best? Both OM32KCS and OM26K-S are among the best water softener. But they work a little bit differently to soften your hard water. The first observes 9 OMNIFilter system recharge cycles. While the second OMNIFilter observes 7 system recharge cycles. Here, we’ll discuss cycles for each whole house water softener product step by step.

OM32KCS (OmniFilter 9 System Recharge Cycles)

Service (Downflow):

Any untreated whole house water goes down through the resin bed. And then the unit moves it up through the riser tube. During this time, any hard water-causing ions stick to the resin and are removed from your city water. Hence, the hard water is being conditioned while the city water flows through the resin bed.

Brine Refill:

At a controlled rate, water flows into the salt tank at an OMNIFilter controlled rate. This is to create a brine for the next OMNIFilter softener recharge.

Brine Prep (Dissolve Salt):

Once the refill cycle fills the salt tank, this tank water softener cycle comes next. It allows enough time for the salt to dissolve in the water.

Backwash 1 (Upflow):

Here, the control valve reverses the water flow. And then pushes water down to the riser tube, then upward through the resin bed. In this water softening stage, the bed expands and any debris flushes into the drain.

Brine Draw (Downflow):

This brine draw cycle happens simultaneously with the slow rinse cycle below. Here, the control leads the water through the brine injector. Then, the salt tank draws brine. This tank water softener cycle completes as soon as the air check in the OMNIFilter salt tank closes up.

Slow Rinse (Downflow):

The brine flows downward through the resin bed. Then it goes upward through the riser tube into the drain. The sodium ions then displace any city water hardness ions, sending them toward the drain. In this water softening cycle, the resin is recharged.

Repressurize Cycle (Hard Water Bypass Flapper Open):

This tank water softener cycle then closes the flappers for a short while. This OMNIFilter process allows the air and water to equalize in the OMNIFilter valve. That is before the recharge continues.

Fast Rinse 1 (Downflow):

The unit control leads city water downward through the resin bed. Then it goes upward through the riser tube into the drain. Whatever brine residual remains will be rinsed from the resin bed.

Backwash 2 (Upflow):

The unit control valve reverses the water flow. And then leads it down the riser tub and upward through the resin bed. In this backwash cycle for OMNIFilters, the bed expands. Any present debris will be flushed toward the drain.

Fast Rinse 2 (Downflow):

The unit control pushes water downward through the resin bed then

upward through the riser tube and into the drain. Whatever brine residual remains will be rinsed from the resin bed.

This diagram illustrates how the cycles work:

ube. During this time, any hard water-causing ions stick to the resin and are removed from your city water. Hence, the OMNIFilter softener conditions the hard water while OMNIFilter flows it through the resin bed.

As the whole recharge cycle begins, this tank water softener goes through 7 cycles. In this whole process, the water softener allows tap water to bypass the whole house or building.

Backwash 1 (Upflow):

Here, the control valve reverses the water flow. It then directs the water down the riser tube, after which it goes upwards through the resin bed. During this OMNIFilter softener backwash cycle, the bed expands. At the time, any debris flushes down to the drain.

Brine Draw (Downflow):

The unit cycle happens simultaneously with the slow rinse cycle. Here, the control leads the home water through the brine injector. The salt tank draws brine. This tank water softener cycle finishes once the air check closes (in the salt tank).

Slow Rinse (Downflow):

During this time, the brine flows down through the resin bed. And then it goes up through the riser tube. Then the unit leads it towards the drain. Here, sodium ions displace the water hardness ions then go to the drain.

Note that during the brine cycle, the resin is recharged.

Repressurize Cycle (OmniFilter Hard Water Bypass, with Flapper Open):

For a short time, the tank cycle closes the flappers. This process allows the air and water to equalize in the valve. That is before the recharge continues.

Fast Rinse 1 (Downflow):

The unit control pushes water downward through the resin bed. Then it goes upward through the riser tube, and finally to the drain. And whatever brine

residual remains present, it will be rinsed from the resin bed.

Backwash 2 (Upflow):

In this system cycle, the control valve reverses the water flow. After this, it will go down the riser tube then upward through the resin bed. All through the backwash cycle, the bed expands. And any debris will be flushed down to the water drain.

Fast Rinse 2 (Downflow):

The system moves water downward through the resin bed. And then it moves water upward through the riser tube. Finally, it exits toward the drain. Whatever brine residual remains will be rinsed from the resin bed.

Brine Refill:

At an OMNIFilter controlled rate, the water is pushed to the salt tank. In this step, the systems create a brine for the next recharge.

This diagram illustrates how the cycles work:

diagram illustrates how OM26K-S OMNIFilter water softener cycles work

Installation Tools Needed

Here are the tools and fittings of things you will need:

tools to install  OmniFilter water softener
  • One pipe cutter
  • Tubing cutter
  • 1 file
  • Pliers
  • Tape measure
  • Soldering tools
  • Lead-free solder
  • 1 water bucket
  • 1towel
  • Teflon pipe tape
  • Adjustable wrench
  • 1 Tube 100% silicone grease

General Guidelines

Before installing the water softener, here are some reminders for you:

  1. Your AC adapter has no user-serviceable parts. If it fails, you have to throw out this OMNIFilter issued adapter and get another unit. So remember to use a power outlet that’s grounded. Apply an appropriate home power grounding strap. Place it all across the inlet going to the outlet piping of your whole house water system. This will maintain proper grounding at all times.
  2. More importantly, check that your electrical connections follow local and national codes. Keep the power outlet on at all times. Make sure that you have a constant supply of electricity to operate the unit. And remember to unplug the AC adapter whenever you need to disconnect power.
  3. You should only use 100% silicone-based OMNIFilter compatible lubricants. Don’t use any hydrocarbon-based OMNIFilter incompatible lubricant. Also, avoid any petroleum-based lubricants like oil or Vaseline.
  4. Use only your hand to tighten all plastic connections. Pliers and home water pipe wrenches may damage them. Also, you can use Teflon tape for connections that don’t have O-ring seals.
  5. It follows that it’s a lot preferable not to use any sealant on the threading.
  6. Check that your whole house plumbing system follows local and state codes.
  7. And remember to follow any drain line requirement.
  8. Keep the drain line to at least a .5-inch diameter.
  9. You may need to use ¾-inch for piping if there is a backwash flow rate of more than 26.6Lpm or 7gpm. This is also the case if the home water pipe length measures over 20 feet or 6 meters.
  10. Complete all soldering tasks before connecting your plastic fittings to the valve. This is important because intense heat will cause damage to the interior of the valve.
  11. And remember not to use a lead-based solder when making any sweat solder connections.
  12. You’re better off not using any sealant on the threading.
  13. Rather, choose plumber tapes for all connections that are threaded.
  14. Lastly, the valve design allows for some misalignments in plumbing. So don’t support the weight of the water softener unit on the OMNIFilter control valve. And don’t do that on the bypass or the plumbing.

Additional General Instructions

water softener other general instructions
  1. Choose a level floor or platform for your OMNIFilter water softener unit placement.
  2. Install and maintain the unit in an upright position. Turning it upside down, drop, or sideways will likely cause the media to enter the valve.
  3. Maintain prescribed ambient temperature ranges
  4. Likewise, keep prescribed water temperature ranges.
  5. Also, observe prescribed working water pressure ranges.
  6. These products are not salt-free softeners. You should only use water softener salts specifically for softening hard water. With that being said, do not use rock or block salts nor ice-melting salts.
  7. Observe water testing standards as set by local and state boards.
  8. Personal safety and product efficiency are important. So never use microbiologically unsafe water or tank water with unknown quality.
  9. Sometimes you may not have knowledge of the quality of your tank water. In this case, you must first apply adequate disinfection before and after the system.
  10. Locate your water drain or tub for discharge as near as possible.
  11. Don’t completely open the water valve as you fill the media tank. And remember to slowly fill the tank. In this way, you’ll prevent any media from spilling out of the tank.
  12. Provide at least three meters of length when you run the home water pipe to the water heater. Because this prevents the hot water from backing up into the system.
  13. The water line connections should have compatible shutoff or water bypass valves.
  14. Make sure to connect to your plumbing system first. Then make necessary modifications first. Do this before you install the bypass water connection and connect to the valve.
  15. Furthermore, wait for any heated parts to cool before you install the plastic parts. Likewise, allow the cemented components to be set first. Observe that before installing the softener plastic parts. It’s also important not to stain the valve, O-rings, and nuts with any solvent or primer.
  16. Give enough room or space to easily handle the equipment during maintenance and add salt to the tank.

Outdoor Install Guidelines – OmniFilter

The recommendation is to install the OMNIFilter water softener product indoors. But if you must place them outdoors, here are some guidelines to follow:

outdoor water softener
  1. The valve and 706 controllers have a NEMA 3 classification. This means that these components are fit for outdoors. And they have protection from rain, windblown dust, sleet, and ice formation. But these are not designed for extreme humidity or water spray coming from below. Hence, it’s important to avoid contact with constant and heavy mist. Likewise, avoid corrosive environments. Also, locate it away from nearby sprinklers.
  2. Expect the materials to have some fading or discoloration over time. It’s a normal effect of being in direct sunlight. But be assured that the reliability of the OMNIFilter unit or its product materials won’t degrade. And it won’t be the cause of a water softening system failure.
  3. Protect the unit from an extreme and erratic change of temperatures. An extremely hot and cold temp will likely damage the OMNIFilter valve. And it will damage the controller. Besides that, freezing temperatures will likewise freeze any tank water inside the valve. And this may cause damage to its internal parts and the plumbing. A high temperature will also damage the controller. The unit display may likely become unreadable. But the OMNIFilter controller should keep functioning. As the temperatures drop, expect the display to come back to normal.
  4. Secure the top cover to prevent insects from creeping into the controller and the valve. Else, critical areas may become infected and cause damage to the unit.

Indoor Installation Guidelines

Let’s look at the steps to installing the product by parts.

For the OMNIFilter Controllers

OMNIFilter water filter controller
  1. When you first plug the OMNIFilter controller in, you may get an Err 3 display. This just means that the water softening unit controller is rotating the camshaft. And it’s rotating to its controller home position.
  2. You will observe a preset recharge time either at 12:00 AM (for OM32KCS) or 2:00 AM (for OM26K-S). That is the default time.
  3. The controller is pre-programmed to recharge if no water softeners recharge has taken place for 15 days (OM32KCS). And it’s 7 days for OM26K-S. You cannot change this automatic setting.
  4. You’ll see the following OMNIFilter settings after newly installing the unit:

Hardness: 25 grains/gallon

Salt: High-efficiency setting

Internal Clock: For OM32KCS, it starts at 00:08:00 hours. And your first recharge starts at 12:00 AM. For OM26K-S, it starts at midnight or 00:00:00 hours. And your first recharge starts at 2:00 AM.

Be reminded to test your tank water for hardness. Because you will use this information to set up the control. Also, remember to connect the transformer to a non-switched power source. Because the control power source should be plugged in.

Water Line Connection

The pack includes a bypass valve system. And this is for installing on all OMNIFilter tank water conditioning systems. You will use the bypass valve to isolate the unit from the water systems. This will let you use unconditioned water if you need to. Some maintenance tasks may need for you to bypass the system.

Here’s a layout of the valve:

water line connector

You’ll notice that the bypass valve is shipped in the bypass position. Anytime this position is active, no water will enter the softening tank. And any water that runs through the premises won’t be treated.

Check these images for the bypass operation and service positions:

images for the bypass operation and service positions

First, locate the best position for the product. Then check the direction of water flow going into the house water main pipe. Inspect the pipe and note the type. (Is it plastic, copper, or galvanized?) Write down the pipe size. Plastic ones would have the size printed visibly. If the size doesn’t show, measure the outside diameter. Then convert it to sizes provided at the store. Never use any home water pipe smaller than your house water main water pipe.

You will notice that this bypass needs 2 connector fittings to connect to the plumbing. Now, your house water main plumbing may be galvanized pipe and you’re installing a copper pipe. In this case, use dielectric insulating connectors between those 2 OMNIFilter compatible pipe types.

Lay the tank in position. The tank design does not give allowance for bad alignment. So get flexible connections from the hardware.

Note all measurements and diagram the installation. Write out the home water pipe details and elbows you need. If the water flows from right to left, then cross the plumbing towards the softener. Bring this drawing to the hardware and consult an expert for installation recommendations.

Lastly, assemble the plumbing. Remember to cool all soldered pipes before connecting adapters to the unit’s bypass.

Connect the inlet water to the inlet port of the OMNIFilter water valve. Verify positions when you’re replacing some non-OMNIFilter water valves. Because the inlet and outlet plumbing position could be reversed. Also, check that the inlet connection of the valve. Verify that it’s connected to incoming water fitting from your water supply.

Some Warnings and Reminders

It’s important that you don’t solder pipes using a lead-based solder. And don’t use petroleum grease on the gaskets when you connect the OMNIFilter compatible bypass plumbing. Stick to 100% silicone grease whenever you install plastic valves. Non-silicone grease will likely cause the OMNIFilter softener plastic components to fail after some time.

On the Connector Assembly

The unit bypass assembly connects to your home water system. And it’s via an OMNIFilter fitted connector assembly. The OMNIFilter connector is fitted to the whole house water plumbing. Then, it’s inserted into the OMNIFilter compatible bypass. You will use a clip to set it in place.

water softener connector assembly

Before you insert the connector, make sure that the O-rings are not damaged in any way. And confirm that they are in place. Grease the OMNIFilter O-rings. And grease any water softener tank sliding surfaces using 100% silicone. Then firmly slide the connector into the OMNIFilter fitted bypass. Set the OMNIFilter accessory locking clip into position. Check that the clip is firmly latched.

If you need to remove the clip, turn the water off first. Release any water pressure at the home water valve. Push all water line connectors in the home water bypass and the valve. This helps release the O-rings that have stuck in place. Remove the clip with a flat blade. Do this by inserting it under the top center of the clip. Lift it carefully.

Don’t use pliers for removing an OMNIFilter accessory clip. Because you may break the clip with it. Before you turn on the water to the home water valve, first rotate the 2 handles on the water bypass valve. Do this two to three times so you can fix the O-rings securely and to prevent leaks.

OmniFilter Drain Line Flow Control (DLFC)

Model OM32KCS

The DLFC 1/2″ NPT assembly is as follows:

  1. Use Teflon tape to wrap threads of the flow control.
  2. Then screw the flow control and its proper sized drain fitting together. Tighten with hand.
  3. Put the ball in the flow control. Then insert the assembly into the drain line opening.
  4. Push the assembly all the way in and secure it with a drain line clip.

Here is the diagram for this:

OM32KCS OMNIFilter dain line chart

Model OM26K-S

The DLFC assembly is as follows:

  1. Use a plumber’s tape to wrap the threads of the flow control. The plumbing adapters must be removed in this time.
  2. Then screw the flow control and its 90° elbow together. Tighten with hand.
  3. Put the ball in the flow control. Then insert the assembly into the drain line opening.
  4. Push the assembly all the way in and secure it with a drain line clip.

Here is the diagram for this:

OMNIFilter drain line control

Drain Line Connection

Model OM32KCS

These follow standard commercial practices. Check that you follow local codes and adjust accordingly.

  1. Place the unit above the drain. But keep the longest distance of 20 feet or 6.1 meters. Use the right adapter fitting that has a hose clamp for connecting  ½ inch or 1.3 cms. of plastic tubing into the drain line connection of the unit control valve.
  2. In case the backwash flow rate is more than 5gpm or 22.7 Lpm, use an ¾ inch or 1.9 cms. tubing. Do the same if the unit is placed at 20 to 40 feet or 6.1 to 12.2 m from the drain. Also, use an appropriate fitting to connect this ¾ inch tubing to the ¾ inch NPT drain connection. This latter one is onto the valve.
  3. You can elevate the drain up to about 5 feet or 1.8m. Just make sure the run does not exceed 15 feet or 4.6 m. Also, check that the water pressure at the softener isn’t less than 40 psi or 2.76 bar. You can increase the elevation by two feet or 61 cm. for every added 10 psi or .69 bar of water pressure at the unit drain connector.
  4. Also, provide a fitting siphon trap. Do this at the point where the drain line (while elevated) empties into the drain. (And it’s below the level of the unit control valve). There, form a 7-inch or 18-cm loop at the far end of the drain line. In doing this, the bottom of the loop will be level with your drain line connection.
  5. You also need to use a sink-type trap at the point the drain empties itself into the overhead sewer line.
  6. Lastly, secure the end of its drain line so you can prevent it from moving.

Be reminded that you must design and construct the waste connection or the drain outlet. And do that to give a connection to your sanitary waste system. This will be done by means of an air gap measuring 2 pipe diameters. You can use a 1-inch or 22 mm depending on which is larger.

You mustn’t insert the drain line straight into the drain, trap, or sewer line. Because you need an air gap between the wastewater and drain line. This prevents any sewage from back-siphoning into your softener.

The right assembly for this unit would be like here below:

correct assembly for OMNIFilter water softener

Model OM26K-S

The procedures are the same as A. But also observe the following:

  1. This water drain line connects to the already installed elbow. This is placed between water line connections on the back end of the valve.
  2. You must use your pliers for expanding the clamp. Slide it up one end of the longer drain line tubing for about 1-2 inches then release.
  3. Next, push tubing over ribbed drain line fitting.
  4. Then expand the clamp. Next, move it up the tube. Then pinch the tube onto the fitting.
  5. Lastly, securely fix the discharge end of the drain line. This will stop it from moving.

Overflow Line Connection

Model OM32KCS

In cases of any malfunction, the unit’s salt TANK OVERFLOW will direct œoverflow to the drain. Thus, it won’t spill on the floor. This unit fitting must be on the side of the cabinet. Observe the following:

  1. Firstly, Attach a 1/2-inch (1.3-cm) I.D. tubing to the fitting. Then run it to drain. Note that the tubing for this water softening product is not provided.
  2. Don’t elevate the overflow line any higher than the overflow fitting. And don’t tie into the drain line of the control unit.
  3. Keep the overflow line direct and separate from the overflow fitting to the drain, tub, or sewer.
  4. Also, allow an air gap. Follow drain line instructions.

See the image below:

direct œoverflow to the drain

Model OM26K-S

The assembly for this product is the same as above. But the tubing connector is included. And you’ll find it at the side of the tank. See the image below:

OM26K-S overflow connector assembly

Salt Line Connection

Model OM32KCS

The salt line from the unit brine tube connects to the valve. Just make sure to tighten these connections by hand. Also, check the unit salt line is secure. And confirm that there are no air leaks. This is important because any small leakage can cause the salt line to drain outward. When this happens, the softener won’t draw salt from your tank. This could also introduce some air into the valve and cause problems with its operation.

salt line connection for water softener

Model OM26K-S

Follow the guidelines mentioned above for OMNIFilter OM32KCS. Also, install the brine line this way:

  1. Firstly, remove the cap off the large cylinder (inside the tank) so you can access the connections.
  2. Then check that the brass insert falls at the end of the unit brine tubing.
  3. Next, push that tubing in the plastic nut. Then carefully unscrew that nut. Stop when the tubing fits into the connection. It should hit the bottom by then.
brine line install

Note that once you push the tubing into the nut, you can no longer pull it out. And you’d have to remove the nut if you want to do that.

Tighten the nut by hand. And stop when you feel the connection is already tight.

how to tighten the nut by hand

Electrical Connection

Observe these reminders:

  • Firstly, know that the control and valve are fit for dry locations.
  • Use with Class 2 power supplies made for outdoor use.
  • Controllers operate via a 12-V AC power supply. Use the provided or any appropriate AC adapter.
  • Check that your power source matches the ratings on the AC adapter.
  • Also, keep the power constant. And don’t plug the AC adapter on a switched outlet.
  • Lastly, long power interruptions may reset the controller time settings. To fix the time settings once power gets back on. Do this for a power outage of 8 hours or greater.

Grounding Your Plumbing Systems

Your plumbing system should be electrically grounded. There may be interruptions when you install a water softener. The non-metallic bypass valve will likely interrupt the grounding. Just solve this by putting a grounding strap on. And this strap will connect your plumbing to the softener. Then connect it onwards to the plumbing and out of the softener.

You must also install any other treating equipment upstream of your water softener. Treating equipment includes sediment filters, chlorinators, iron filters, neutralizers, and taste/odor filters.

You can also consult a water professional. One can help with installing these additional water treatment equipment.


You must disinfect after first installing any of these units. And do periodic disinfection. Indeed, the construction materials of these water softeners are safe. They are not prone to bacteria growth. And they will not contaminate the water supply.

But with regular use, your softening unit may smell. And it may be due to accumulating organic matter or bacteria coming from the water supply. So you need to disinfect so that your water doesn’t develop a bad odor or off-taste.

You may disinfect in various ways. This also depends on the conditions of usage and the kind of softener. And it depends on the ion exchanger utilized, including what disinfectants are available.

Generally, your choice is between sodium or calcium hypochlorite. Safely use them with synthetic gel zeolite, polystyrene resins, bentonites, and greensand.

With 5.25% Sodium Hypochlorite

You can buy it as regular bleach like the brand Clorox. When using stronger concentrations, remember to adjust the dosage.

  • For polystyrene resin, use 1.2 fluid ounce/ cubic foot. That’s 35.5 ml/0.03 cubic meter.
  • With non-resinous exchangers, use 0.8 fluid ounce/cubic foot. That’s 23.7 ml/0.03 cubic meters.
  • For salt tank softeners, backwash your softener. Then add hypochlorite solution amounts to the well of the salt tank. Now, this water softening salt tank must have water in it. And this will move the solution into the softener.
  • After that, proceed with a normal recharge.

With Calcium Hypochlorite

You can buy it in tablets, granules, and other forms. This is essentially 70% available chlorine. Throw them in straight as there’s no need to dissolve before using.

  • Use 2 grains. So that’s about 0.1 ounces/cubic foot or 3 ml/0.03 cubic meter.
  • For salt tank softeners, backwash your softener. Then add the right amounts of hypochlorite into the well of your salt tank. Again, the salt tank must have water in it. And this will move the solution into the softener.
  • After that, proceed with a normal recharge.

General Information – OmniFilter OM32KCS Controller

Both products use a 706 Series Controller. But here is some information and instructions specifically for this water softening product.

On Power Loss & Memory Retention

The 706 series controllers use a 12-v AC 5060Hz motor and power. The controllers also have a battery-free time and data retention in case of power loss. So that means the controller keeps correct time and day settings even without power. But this feature is active for up to 8 hours only. And you may need to reset when the power outage exceeds that period.

But the OMNIFilter controllers won’t track water use while power is out. As for other programmed parameters, they remain in static memory. These settings are kept separate from the time of day settings. Hence, they won’t be lost even during a power failure.

To explain, the controller calculates, enters, and stores information in 2 separate ways.

  1. The static memory stores salt settings, user-programmed values, and hardness settings. And it stores daily averages or historical values.
  2. And the dynamic memory stores time of day and water usage for the day. This stays for up to 8 hours when power is out.

The controller also has a variable reserve function. This feature will automatically adjust the reserve to your home’s water use schedule. This a conservation feature. Because the variable reserve generates only when necessary. The variable reserves also make sure that you have ample soft water. That is especially during the usual days your home experiences high-water usage.

The controller daily reviews the last 4 weeks of your water usage. Then it determines if the remaining supply is enough for the next day. If the result shows some inadequacy, the controller will start an automatic recharge.

Lastly, note that you can turn on (or bypass) the water flow to the valve. You can do that when you power up the controller for the first time.

On Display Icons

water conditioner display

During regular operation and programming, some icons may or may not display. Let’s identify these icons below:

  1. Indicates water flow. Also, the arrows alternate much faster when water flow increases.
  2. This multiplier by 100 lights up to indicate large values.
  3. œMIN lights up when values are by minute increments. This also displays during a recharge. This shows up to show the remaining minutes of recharge.
  4. This colon flashes during the time display. It generally states a normal operation.
  5. These four digits are for time display and program values. They also show error codes.
  6. This recycles sign is displayed during a recharge. And it also flashes when the next time for recharge is called for.
  7. When you see this x2 light up, it means a second recharge is called for.
  8. This hourglass icon shows up while the motor is running.

You should note that the display shows the current time during normal operation. This would be the Service Mode. And the colon will be blinking. Alternately, the gallons remaining to be treated before the next recharge are also displayed.

On Keypad Buttons

OMNIFilter water filter controller keypad

Icon 1 Is for Showing the Time of Day

Press and release this button for 5 seconds to display. Then while the current time is showing, press and release the button again to add time by 1 minute. But if you press and release the button for two seconds, you can quickly increase the time.

Icon 2 Shows the Salt Amount

Press and release this button to display the unit’s current salt setting. It shows up for five seconds. It displays either of the 3 salt settings. These are HC or high capacity. SD or standard capacity, and HE for high efficiency.

HC settings maximize the system capacity between recharges. This will also use the most salt. You can use this setting for high water hardness and high water use.

SD settings use moderate amounts of salt. It also provides medium amounts of water between recharges. You can use this setting for moderate water hardness and moderate water use.

HE settings lower salt use for recharges. It provides the least amount of water between recharges. You can use this setting for low water hardness and low water use.

Icon 3 Displays Water Hardness

Press and release this icon to display the water hardness setting for 5 seconds. And when you press the button again while the setting is displayed, you can change the hardness by 1. If you press and hold for 2 seconds, you can quickly increase the hardness settings.

Keep in mind that very high hardness settings may cause the system to recharge more often. It will also use more salt and water than what may be needed to condition your home water. But very low settings will cause this system to recharge less often. And the system may pass hard water shortly before it starts to recharge.

Icon 4 Displays Recharge

When you press and release this icon, you will start a recharge. The recharge will happen at the next scheduled time. You’ll see a flashing regen symbol for notice. You may want to stop a manual recharge. Just press then release the recharge button for a second time. You may also want to start a recharge immediately. Just press then hold the recharge button for 3 seconds. You’ll see a solid regen symbol display. Also, the time display will show up and say the amount of time remaining for the recharge cycle.

During a recharge cycle and the recharge, the icon is on steady, you can set a second manual and delayed recharge. Just press the recharge button then release. You may want to stop the second manual recharge. Just press then release the recharge button for the second time.

Also, the charge cycle and the regen icon may be steady. But you may want to set a second manual and immediate recharge. Just press the recharge button for the second time and for 3 seconds. You cannot stop a second immediate recharge.

Also note that if you do not push a button within 5 seconds, the controller will return to a normal operation mode. Also, pushing the recharge button will set the controller back to normal operations.

On Recharge Cycles

water softener recharge icon

The remaining regen time displays on the screen. Also, the recharge icon remains steady.

If you want to advance a recharge cycle, simultaneously press the time of day. Then recharge to advance to the next cycle. The hourglass will show while the cam advances. When the cam reaches the next cycle, the remaining time will display

Repeat pressing time of day and recharge to advance through each of the cycles. And you can determine which cycle the controller is in during the recharge. Do this by checking Table 2 below for OM 32KC-S details. Note that the remaining time displays on the controller. To find the remaining time below the salt setting. The cycle columns will have the cycle number.

water softener recharge cycle

Touch and hold the Time of Day and Recharge buttons for three seconds to advance through all cycles. You’ll see the hourglass flash. And the Camshaft will advance to service. In total, this may all take from 1 to 2 minutes.

Check this table for recharge cycle requirements:

water softener recharge

General Information – OmniFilter OM26K-S Controller

OMNIFilter model OM26K-S controller

Here is some controller information specifically for this unit:

  • A large LED display is clear and visible.
  • It has simple 3-step programming. You use 3 buttons to program the control.
  • The Camshaft indicator is visible via a column of windows on the left side. You can check the camshaft rotation.
  • A Manual Regen button starts a delayed or immediate regeneration.
  • The Time button displays the current time for 5 seconds. If you quickly press it again, you can change the hour by 1. (And keep holding after your press to make quick changes.)
  • A Salt button displays the current setting for 5 seconds. Change settings by pressing again in 5 seconds.
  • The Hardness button displays hardness settings for 5 seconds. Change by pressing again in 5 seconds. You can add 1 grain per gallon per press. To quickly add grains, just keep holding after you press.
  • A flow Indicator (decimal point) blinks when the water flow turns the meter
  • The power loss memory retention feature is battery-free. It retains time even when power is out. Aso, flash memory can note all programmed values for up to 100 years.

Guide to Powering Up the OM32KCS Controller

Turn off your water supply valve or place it in a by-pass. During the initial power-up, the camshaft goes to the in-service position. It may rotate to do that. Likewise, it may also take 1 to 2 minutes for the camshaft to return to the in-service position later on.

Note that an Err 3 displays until the camshaft returns to the in-service position. If it takes longer than 2 minutes, check if the motor is turning the camshaft. If it’s not, go to the troubleshooting section.

Once the camshaft reaches the in-service position, this will show up œ- -:- -. The time may display alternately with the remaining capacity. It means the controller is using short-term memory to load the settings. Further, the short term memory will hold those settings for about 8 hours:

  • Water used for today
  • Water used since the last recharge
  • The current time of day
  • The recharge state

If you have un-programmed controls, the default settings will show as follows:

  • Hardness setting at 25 grains per gallon
  • Salt setting at HE or High efficiency
  • The system is set to recharge every 15 days even if no water will be used. If there will be no water usage for a long time, you should unplug the system. Also, note that you cannot program a calendar override
  • Water used at 0
  • The internal clock is set to 8 AM. And this œ- -:- – will continually display until you manually set the time and update the internal clock.
  • The day of the week is set on a Sunday.
  • A recharge will happen when the internal clock goes to 12:00 AM. At that time, the regen icon will start flashing.

Instructions – Initial Start-up


  • First, set the time of day. Do this by pressing the Time of Day button. Then press it again within 5 seconds to start adding minutes. You can quickly increase the time by pressing then holding for 2 seconds. Then release the button. The controller will save time after 5 seconds.
  • Second, choose the salt setting. The control defaults at HE or high-efficiency settings. Check or make changes by pressing the Salt Amount button. This displays your current setting. To change it, press the button again within five seconds. This change will be saved after five seconds.

Set to HC for 3 or more people in a household. Also, use this for water hardness of 25 gpg and above. The system will use the most salt and do more recharges under this setting. This setting is also recommended if the HE setting is running out of capacity.

Set to HE for 1 or 2 people in a household. Also, use this for water hardness of 20 grains per gallon or below. This setting is also recommended when the HC setting is providing you with too much capacity.

  • Third, enter the water hardness. The controller default is 25gpg. So you need to check your water for its actual level and set it accordingly. Pressing the Water Hardness button will display your current settings. Then you can make changes by pressing the button again in five seconds. To quickly increase increments, push, and hold the Water Hardness button. Release the setting and it will save in 5 seconds.

Remember those very high hardness settings will use more salt and do more recharges. You may overuse more salt and water in that case. Also, very low hardness settings will schedule fewer recharges. And your system may start passing hard water before the next recharge.

  • After doing the above, the program will be complete. And the controller will start operating if you don’t push any button in 5 seconds. When Service mode starts, you’ll see the current time on the display. The colon will be blinking. Alternately, you’ll see the remaining gallons on display. This value says what will be treated before the next recharge cycle.


  • First, set the current time. The controller defaults at 0 hours. Change the hour by pressing until you see the right hour on the display. It doesn’t show minutes. Any minutes will be reset to 0 whenever you change the setting for hours. Choose hours from 0 to 23.
  • Second, set the recharge time. By default, the setting is at 2:00 AM. And you’ll see02′ as displayed. If this is acceptable, then set the controller for the correct time of day. But if you want to recharge at some other time, then change your clock settings.
  • .You can recharge sooner. Just set the time ahead by the number of hours you need. If you advance the hours by two, you’ll cause the recharge cycle to start at 12 midnight.
  • You can recharge later. Just set the clock back by the number of hours you need. If you back up the hours by two, you’ll cause the recharge to start at 4 AM.04 will display.
  • Third, choose salt settings. It’s best to have a water test to get an accurate hardness level. Use it to select between HC or HE settings. The controller defaults at HC or high capacity settings. But if you want to change that, just press the Salt Amount button again in 5 seconds. New settings will save after five seconds.

Remember that HC settings maximize system capacities between recharge cycles. But it will use the most salt. Choose this for high water hardness of 26 gpg and for high water use, like 3 or more people in a household using water. Switch to HE for the least amount of water between recharge cycles. Switch for like 13 gpg or 1 to 2 people in a household that uses 20 grains per gallon or less. Also, use this setting for low water hardness.

  • Lastly, key in water hardness level. The controller defaults at 25 grains per gallon. View it by pressing the Water Hardness button. Apply actual rates and change this setting accordingly. Change by pressing the button again in 5 seconds. You can quickly change values by pushing then holding the Water Hardness button. When the value is right, release the button and the settings will save in 5 seconds.

Remember that high hardness settings will cause more recharge schedules. And this may provide more than what you need. That will in effect, be a waste.

But too low settings will cause fewer recharges. And that may prove ineffective. Because hard water may start passing before the next recharge cycle initiates. That’s why it’s important to use the right levels at all times.

  • After all these, the program is complete. The programming also exits if you don’t push a button within 5 seconds. The control will then return to normal mode and display the current time.

Supplementary Installation Checklist

Here’s a checklist to guide you through the installation of the tank.

  1. Did you read the owner’s manual?
  2. Have you observed all safety guidelines?
  3. Did you use a metal pipe? If so, did you restore electrical grounding?
  4. Have you securely installed both drain hoses onto an approved drain?
  5. Did you do a leak test?
  6. Have you moved the bypass valve to the service?
  7. Did you sanitize the softener?
  8. Have you added the required salt pellet amounts to the salt storage tank?
  9. Did you program the control according to your needs?
  10. Have you started the recharge?

Use & Care – Brine Tank

Here are guidelines for caring for the brine tank.

  • You need salty water or brine every time the softener recharges. Because it helps recondition the media in your water tank. The salt tank pulls in the brine at controlled amounts. If there isn’t enough salt, meaning, the brine is weak, the media won’t fully recondition. This means that untreated water will likely pass through.
  • Remember to always keep salt in the tank.
  • It is best to operate the salt tank below half-full (meaning, the salt level). If it’s more than that, these salt pellets might bridge. This is when salt pellets wedge on each other and don’t fall into the water below. After some time, there won’t be any salt falling through to make a brine. Although the softener keeps recharging, it doesn’t recondition the media at all.
  • Break up a salt bridge by using a broom handle or long stick. Slowly pound and break it up. You’ll see the pellets start collapsing. Once the salt pellets loosen, wait for 2 hours. Then start with the regeneration. You may need to do a second recharge to recondition the media thoroughly.
  • Remember to use sodium chloride pellets for water softeners. Because other types likely have dirt as well as chemicals. And these will affect the water softener.
  • Always keep your brine tank covered.
  • And lastly, empty the tank for cleaning every three years.

Operation Mode

Follow these guidelines as you place the softener into operation.

  • Open your inlet water valve carefully. If you do it very quickly, some media exit the tank and go into the plumbing or valve. In the ¼ open position, the proper way is to hear air slowly escape from the valve drain line.
  • Put salt in the tank after your unit control valve is placed in operation mode. Because it’s easier to check the water flow and movement in the tank when there is no salt.
  • Advancing from cycle to cycle has some delays. And you’ll see the hourglass icon lighting up whenever the camshaft is indexing.
  • Start a recharge by pressing then holding the Recharge key.

Advance Recharge Cycles:

  1. Press Time of Day + Recharge at the same time. This advances the unit to the next cycle. The hourglass will display as the cam advances. Then when the Cam gets to the next cycle, you will see Time Remaining on display.
  2. Repeat this to keep advancing through each cycle.
  3. If you want to check which cycle is ongoing, check the table below for OM32KCS. (See Time remaining below your salt setting and match the detail below)
table for model OM32KCS advance recharge cycle length
  1. Press, then hold Time of Day + Recharge. Do this for three seconds to keep advancing through all other remaining cycles. The hourglass will keep flashing as well. And the Camshaft will advance to each service. Expect 1 to 2 minutes for each advancement. Check the table above for the cycle times.

Just some reminders before you turn on the water supply:

  • Check that the plumbing is properly and securely installed.
  • Meanwhile, verify that the valve drain line is properly and securely fixed at the drain.
  • Also, confirm that there’s no salt in your tank.
  • Likewise, the controller must be properly programmed and turned on. And the display shows the time of day while the colon flashes.
  • Check that the bypass is not in bypass mode. And the inlet water system is off.
  • Lastly, both of the valve handles should point in the direction of water flow.
valve handles should point in the direction of water flow

If these are not so, correct what’s needed before you proceed.

Quick Recharges

You can do a quick recharge if you want to check whether the system is functioning correctly.

  1. Adjust incoming water flow to a low position. Listen to the flow as water enters the media tank. Don’t open the valve fully to prevent the media from spilling into the valve.
  2. Start the recharge.
  3. Turn on the service faucet. The salt tank will then fill up with water. At the same time, any air will exit the faucet. When all air has exited the media tank, water will now run without any air spurts. Wait for the water to go up by 3 to 4 inches (or 7.6 to 10.1 cm). Then turn off the faucet and move to the next cycle.
  4. Turn the inlet water to full.
  5. This brine prep cycle will let in water to the salt tank and dissolve the salt. Inspect for leaks. Should you see any leaks, don’t proceed any further. Make repairs first. But if there are no leaks, you can move on to the next cycle.
  6. Here, the backwash will force water through the media into the drain. Inspect for air bubbles and any small particles that may be in the water. If the water flows clear, you can move on to the next cycle.
  7. Brine draw runs simultaneously with a slow rinse. The discharging to the drain slows down and water in the salt tank recedes here. If you see the water exiting the salt tank, then you’re fine to move on to the next cycle.
  8. The repressurize cycle happens. It is short. Here, the internal system pressures stabilize. You can move to the next cycle after 1 to 2 minutes.
  9. The fast rinse cycle is a full pressure rinsing of the media in your tank. The discharging to the drain will be high. After this, you can move to the next cycle.
  10. With backwash 2, the backwashing of the media tank takes place again. The discharge to the drain is going to be slow. After this, advance to the next cycle.
  11. For fast rinse 2, it is a recharge process. The flow to the drain is going to be high. This last cycle is about 1 minute long. Let it be complete. Then advance to Service.

The controller will start for the 1st time. And it will schedule a recharge at the normal time for recharging. The media inside the tank will function properly. It will do so up until the first scheduled recharge.

Now you can put softener salt in the salt tank. You should see the current time on the display with the colon flashing.

Automatic Recharges

The control has an internal water meter. It counts the number of gallons used. And the unit will recharge once the recharge set point is reached. The setpoint is your gallons of water treated. Keep in mind that the number will depend on what capacity setting you used, whether it’s HE, SD, or HE). It also depends on the hardness of the water level.

Fully Operational Systems

The system is now fully operational. And the display should always show the current time of day. And it should alternate with capacity remaining. The alternate displays and the blinking colon should be visible. That is, during Service Mode.

Operation Mode

Automatic Recharges

Like the OM32KCS, the OM26K has an internal water meter. And it counts the gallons used. Once the recharge set point is reached, your unit will start a recharge cycle. The setpoint is gallons of water treated. And it depends on what capacity setting you used (whether HE or HC) and what water hardness level you used. You can also check supplementary data sheets at the end of this article.

Manual Delayed Regeneration

You can set a delayed regeneration manual. Just press and release the Regen button. That will program it. The unit will regenerate at the next Time of Regeneration, which is 2:00 AM. You can repeat the procedure if you want to disable the Delayed Regen. Note that the Regen dot will blink whenever delayed regeneration is set on.

Manual Immediate Regeneration

You can start an immediate regeneration manually. Just press and hold the Regen button for 3 seconds. The control will cycle to backwash. It will then proceed through a full regeneration. You’ll see a cascading symbol (- -) display until the regeneration completes. Note that that symbol does not display during quick cycling of the control.

Quick Cycling the Control

If you want to quick cycle, just press and hold the Regen button for 3 seconds. The control will cycle back to the backwash cycle. Next, press then releases the Regen button to display “C1”.

Then simultaneously press and release the Regen button + Time button. This moves the control onto the next cycle. Note that the time displays for 5 seconds. Now, press and release the Regen button. Either of these will show up: “- -” or the “C#”. Just keep pressing to switch between those two displays.

Keep repeating the above steps to cycle through each of the positions.

Shifting from Quick Cycle to Service Position

Simultaneously press the Regen button and the Time button. Hold them for 3 seconds during any of the regeneration cycles. The control will then skip the remaining regeneration cycles. And it will return the unit to the service position. You’ll see the Time of Day display once the control goes back to the service position.

OM26K-S Recharge Cycle Times and Requirements

Refer to these tables below for information.

water softener recharge cycle requirements
OM26K-S recharge cycle times

Starting Up

You need to place the conditioner in operation mode. First, check the Quick Cycling instructions above before continuing with this procedure. And as a reminder, don’t put degenerate material in the brine tank.

  • Position the bypass valve to normal operation. The main water supply should be turned off at the time.
valve handles should point in the direction of water flow
  • Next, press then holds the Regen button for three seconds. This will start a manual regeneration. And it will cycle to the backwash position.
  • Put water into the media tank.
  • The conditioner is now in the backwash. You may then open the water supply valve. Do this very slowly, at about ¼ open position. You’ll see water enter the media tank. Meanwhile, the air will be purged to drain as the tank fills up with water. Remember that if you open the valve too quickly, you may spill media out of the tank and into the valve or plumbing. So maintain the ¼ open position so you can check the air as it escapes from the valve drain line.
  • Once all the air has been purged from the tank, you’ll see that water flows steadily from your drain line. Now you can open the main water supply valve all the way. This purges the remaining air from the tank.
  • Next, let the water run to the drain. And do this until it runs clear from the drain line. This will expel any debris from the media bed.
  • You can now pour around 3 gallons of water into the brine tank. Then advance to the second cycle (Brine Draw). Do this by pressing the Regen and Time buttons simultaneously. You’ll see the valve drawing water from the brine tank at this point. If not, check the troubleshooting section. It’s at the end of this review guide.
  • Lastly, a quick cycle on to the refill cycle (or C7). Put salt in the brine tank. Then let this cycle complete. The control will move back to service. And the brine tank will maintain the correct volume of water.
  • Remember to properly disinfect the system beforehand.
  • Once the water conditioning system completes, it becomes fully operational. YOu’ll see the current time on display. And the decimal point (on the bottom center of the display) will blink when water is flowing.

Accessing History Values

706 controllers show the operation history of your softeners. To view history values, just press Recharge then the Sal Amount button. Next, hold for 3 seconds. After that, you’ll see the Diagnostic Codes.

If you don’t push any button within 30 seconds, you’ll exit the history table. But if you press the Time of Day button, you move through the table. Once you reach the desired code, press the Salt Amount button to see the value.

(Note that for OM26K-S, some values are four digits 1, 2, 3, 4. If you press the Salt

Amount button, you can display the first 2 digits. Then, when you press the Water Hardness button, you can display the last 2 digits.)

Now, if you press the Salt Amount button, you can view H2 / the current flow rate and so forth. But you cannot update these values. You can continue to press then release the Salt Amount button. Do this every five seconds to change what’s on display.

You’ll also notice that the flow icon (dots on OM26K-S) on the display flashes. It flashes whenever there is flow going through the softener.

See this guide below for both OM32KCS and OM26K-S:

access value history of OM32KCS and OM26K-S


Warranty Provisions

Pentair Residential Filtration, LLC (PRF) gives the following guarantees on its water softeners:

  • 10 years warranty on materials and workmanship. This begins from the date of sale. for fiberglass mineral tanks and brine tanks. These should follow normal use.
  • 5 years warranty on materials and workmanship. This begins from the date of sale for the control valve and electronic controllers. And it’s the same for valve bodies. And it includes internal valve parts. The warranty excludes brine injectors.
  • 2 years warranty on materials and workmanship. This begins from the date of sale for more parts not listed above. Any replacements will remain in warranty according to the original period.

There are exclusions though. These are:

  • water softening resin is excluded
  • Damages from lightning or conditions beyond company control
  • Defects not reported within the warranty period
  • Products or parts not manufactured by PRF
  • Problems brought by non-compliance with company instructions
  • Damage brought by abuse, neglect, misuse, and acts of nature
  • Any damage or problems brought by modification, alteration, tampering, and unofficial repair
  • Damage from non-compliance with codes, laws, and ordinances

There are also conditions for the warranty, namely:

  • PRF has the discretion over which to repair or replace.
  • The company must authorize the return. And all returns must have a Return Good Authorization number.
  • Returns must have proof of purchase date and essential product details. And products or parts must be returned within the warranty period.
  • The Customer shoulders the shipment expense.
  • Customers should always include the model number and serial number. And they should give descriptions of the problem or damage.
  • PRF is not liable for loss of time, expenses, or inconvenience. The company is not liable for consequential damages for personal injury. PRF does not cover the loss of profits. There is no liability for business interruptions or loss of business information. Any other pecuniary losses that happen from the inability to use the units have no cover.
  • The company has maximum liabilities up to the amount of actual purchase of the unit or part.

Troubleshooting Guide

Here is a guide to solving the following problems:

Err 1 Display

This display means the program settings are corrupted. Solve by pressing any key. And if Err 1 does not clear, you should replace the control.

Err 3 (Can’t Detect Camshaft)

This may mean the control doesn’t detect the camshaft position. And so it’s turning back to a service position. Solve by waiting until the control goes back to the service position. You’ll see the flashing hourglass indicating the motor is now running.

Err 3 (Camshaft Doesn’t Turn)

Solve by checking if the motor is connected. Also, check if the motor wire harness is still connected to the motor and controller modules. Lastly, check that the motor gear has engaged the camshaft.

But if all are connected, you need to replace parts in a particular order. First is the motor assembly, then the optical sensor, and last, the control.

Err 3 (Camshaft Turns >5 Mins. to Assume a Service Position)

Check if the optical sensor remains in place and connects to the wire. Also, check for debris lodged in the camshaft slot. If the problem continues, replace the parts in this order: optical sensor, then control.

Salt Tank Overflowing

Lose the salt line connection. And tighten all salt line connections. Also, the drain line may be restricted from accumulated debris. In this case, clean the drain control.

Flowing or Dripping Water at Drain or Salt Line After Recharge

The debris may be preventing the no. 4 valve disc from closing. In this case, remove the debris. At other times, the no 4 valve disc may be worn out. In this case, replace the valve discs.

Hard Water Leakage After Recharge

This could be due to an Improper recharge. Make sure the salt dosage was rightly set. Then repeat the recharge. At other times, the external bypass valve may be leaking. In this case, replace the bypass valve. Sometimes also, you may have a damaged O-Ring around the riser pipe. So just replace the O-ring.

Valve Does Not Draw Brine

The drain line may be restricted. Just remove the restriction. At other times, the injector may be plugged. Just clean it and the screen. The debris may also prevent valve discs from closing. In this case, remove any foreign matter that’s causing the restriction.

Control Will Not Recharge Automatically

The AC adapter or the motor may be disconnected. Just connect the power. If the motor is defective, you need to replace the motor. At times, the meter may get clogged due to debris. (Anyway, the unit will recharge every 15 days for OM32KCS and 7 days for OM26K-S.) Just remove and clean the meter.

Control Recharges at the Wrong Time of Day

This means you set the Time of Day wrongly. Just correct the values.

Intermittent Salt Draw

The water pressure may be too low. Adjust and keep 20 psi or 1.3 bar feed (at the least).

No Conditioned Water After Recharge

You may have failed to put salt in. Just add the salt into the salt tank. At times, the injector may be plugged. Just clean the injector and the screen.

Backwashes or Rinses at an Excessively Low or High Rate

The drain line flow control may be absent. Just install it. At times, the drain line may be restricted. Just clear the restriction.

Runs out of Conditioned Water Between Recharges

You may have wrongly programmed the control. Just check that you’re using the right salt dosage.

The Flow Indicator on Control Does not Display Service Flow

The Bypass valve may be in a bypass position. So remove the bypass valve from the bypass. At times, the meter cable may have dislodged from the valve. So fully insert the meter cable into the valve. Sometimes, the meter may get clogged by debris. Just remove and clean the meter.

Water Hammer (OM26K-S)

There may be air in the media tank. Just check all the salt line connections for air leakage. And tighten connections to stop air leakage. At times, the aircheck is not sealing. In this case, clean the aircheck assembly.

Supplementary Diagrams/Charts

Standard Water Systems (Basement)

standard water system water softener diagram

After-Installation of Softener Unit

After-installation of Softener Unit chart

Tank Assembly


soft water tank assembly diagram
Tank Assembly For OM32KCS index table

For OM26K-S

tank assembly for OM26K-S diagram

Valve Assembly


Valve Assembly For OM32KCS diagram
valve assembly OM32KCS table

For OM26K-S

OM26K-S valve assembly diagram
Valve Assembly For OM26K-S index table

Brine Well Assembly


brine well assembly OM32KCS diagram
OM32KCS brine well assembly table


OM26K-S well assembly
Brine Well Assembly for OM26K-S index table

OM32KCS Valve Disc Operation

OM32KCS softener valve layout

Lift up the 706W control and remove the covers. The first image shows the valve layout. You’ll see the flappers and camshaft as shown below in the second image.

OM32KCS flappers and camshaft

OM26K-S Flapper Positions

The flappers and camshaft will be visible when you remove the control cover. You’ll see something like this image below:

flappers and camshaft of OM26K-S chart

Performance Data Sheets


performance data For OM32KCS

For OM26K-S

performance data For OM26K-S


Which is the best water softener?

To close, both OM32KCS and OM26K-S are worth looking into if you’re after hard water solutions. These give you the enjoyment of softer water you can use to bathe and clean around the house. And you have softened water to use for your water-drawing appliance.

These Omnifilter water softener units reduce the costs of water heater energy by up to 30%. You also use less laundry detergent, dish soaps, and other cleaning products. This means more savings for you. The high-flow valves and tanks ensure that you get continuous water flow. And that you have consistent water pressure.

You also get a unit that uses a digital display and simple 3-step programming. Both smart softener units estimate your daily water consumption and provide accordingly.

The only differing factors would be the design and tank capacity. So choose the unit that will meet your household requirements. And let this exhaustive review guide help you with the installation and programming.