Residential Filtration FAQs

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What kind of salt should I use in my Pentair softener?

Pentair recommends that your water softener salt is 99% salt and we prefer crystals. You can find this salt at your local grocery store, hardware store or even at your local gas station.

How can I tell if tank is under warranty, or when it was manufactured?

The manufacturing date /serial numbers on the label on your tank. It is located underneath the model number.  The tank in reference below was manufactured on May 15, 2019.

warranty, faq, wtp, date

What do I do if my water softener fails to regenerate?

  • Make sure that your unit is plugged in and you have power going to the unit.
  • Make sure the unit is not in bypass.
  • Does the meter count gallons remaining off of the timer?

What do I do if my water seems hard; it no longer feels slippery when washing dishes?

  • Is your water softener regenerating? (see steps above 
  • Is there salt in your brine tank?
    • If no, please add some
    • If yes, has your water softener been using salt
      • If no your softener is not regenerating.  Please see steps above.

What if my water softener is using too much salt?

  • Check your capacity, hardness, meter setting and salt dosage are set correctly for the size of your system.
  • Is your brine tank full of water?
    • If yes, push the float down and see if the brine tank starts to fill.
    • If no, check that your brine valve refill amount is correct and also check your settings listed above.

What do I do if my water pressure in my home is low?

  • Put water softener in bypass and see if the pressure is up.
    • If no, then the restriction is in your plumbing- check all shut off valves
    • If yes, the pressure drop is within the water softener system
      • When is the last time you replaced your resin?
    • If still having an issue contact your installer, dealer or Pentair technical support for further assistance.

What do I do if my sink or drains are plugged with resin?

  • Check that your inlet and outlet plumbing is not reversed.
  • If your inlet and outlet are plumbed correctly, then your distributor assembly is cracked and needs to be replaced.  Contact your installer or dealer for further assistance.

I have a water softener but I still have reddish staining on my fixtures. What do I do?

  • Check your programming that the iron amount was added to your hardness.
  • Does the unit regenerate? See steps above
  • Do you have low pressure?
  • Have you been using or tried resin cleaner
    • If no- try resin cleaner
    • If yes, it is time to rebed your system.

How and when do I replace my Pentair whole house filter?

How do I replace the filter underneath my sink?

  • Turn off cold water supply and open the drinking water faucet to release pressure from system.
  • Unscrew and remove bottom of filter housing. Locate and remove O-ring, wipe clean of lubricant, and set aside.
  • Discard used filter cartridges. Using a non-abrasive sponge or cloth, scrub the bottom of filter housings, O-ring grooves, and caps with dish soap and warm water. Rinse thoroughly. Fill bottom of each housing 1/3 full with water. Add 2 tablespoons of household bleach and scrub to disinfect.
  • Lubricate O-rings with silicone grease. Insert O-ring in groove and press into place. NOTE: This step is important to ensure a proper housing seal. Make certain each O-ring is seated level in its groove or a leak may occur.
  • nsert filter cartridge in bottom of filter housing.
  • Screw bottom of housings onto caps and hand-tighten. DO NOT OVERTIGHTEN. Using the wrench is considered over tightening and will compress the O-ring too much and water may leak.
  • Flush filter for 10 minutes before use.

How do I hook up my Omnifilter RO2000 and RO2050?

  • The ¼” cold water supply line will go to the sediment filter.  There is a ¼”line that will go from the pre-carbon filter to the auto shut off valve.  The auto shut off valve has the words “in” and “out” embossed in the top of it. The ¼” line from the pre-carbon will go into the top “inlet” port.  The top “outlet” port on the auto shut off valve will have a ¼”tube going from it to the cap end of the membrane housing.  On the opposite end of the membrane housing there are two ¼” fittings.  The fitting closest to the end is going to go into the bottom “inlet” port.  The bottom “outlet” port will go to the “T”.  From the “T” one side will have a tube going to the tank and the other side of the “T” will go to the post filter.  On the opposite end of the post filter there will be a tube that goes to the main stem of the faucet. On the membrane housing where there are 2 fittings the one more towards the side would be your waste water line.  This line gets attached to the ¼” side barb on the faucet
  • Base. There is also a 3/8” barb which you will install that line & take it to your drain pipe.
  • Below is a diagram of the auto shut off valve.
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