Question about Culligan Under Sink Water Filter
Water outflow from faucet and to fridge very slow. Changed filters . No improvement. Now they say no air pressure in tank, so need to change tank. Only 1 year since purchase. Pl advise
If it has only been one year, check the warranty. Who said that it needed to be replaced? Oftentimes, a repairman can adjust the pressure to increase the outflow without needing to replace the whole unit.
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Posted on Jan 17, 2014
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Posted on Jan 02, 2017
SOURCE: I can't get a water
If the tank is full of water (pick it up) with 8 lbs of air then the air charge is low and little or no water will come out. Take should have 7psi air pressure when it is completely empty. Make sure all the water valves are on. If feeding RO with piercing valve make sure it is open all the way and has plenty of water pressure feeding RO. If there is no water being created then there will be no water at faucet, fridge or ice maker, assuming they are all tied into the RO.
Posted on May 12, 2011
SOURCE: I own an old Culligan
It is quite common to loose air pressure in the RO over time. At times the tank will be full of water but will not have enough air pressure to push water out. Take the tank of drain as much water as possible, for 3 gallon tank bring pressure in tank to 7psi, for 10 gallon tank pressure should be 10psi.
Posted on May 12, 2011
There may be several causes for this. Here is a list of things to look for.
1. If an activated carbon filter was installed many times carbon fines will plug up the head of the RO housing. Pull the filters out and flush the whole assembly with NO filters in it.
2. The capillary tube (which puts back pressure on the membrane to create water) may be worn out and all the water will run to the drain. Replace capillary tube
3. The automatic shutoff may not be opening to allow for water flow.
4. Shut the water off at RO tank and take the line off from RO filters to see if any water is flowing from housings.
5. The RO tank may also need air. If the air charge is low in tank (7 psi for 3 gal tank) no water can be forced from the tank.
6. If the RO is fed by a piercing valve make sure their is water coming from it.
7. Depending on what type of RO it is their may be a flow restrictor in head of membrane housing that can get plugged also.
I hope these tips may help you,
Posted on Jun 21, 2011
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