Question about Culligan Under Sink Water Filter

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Just replaced particulate, activated carbon and polishing filters. Turned water supply back on, made sure polishing filter in properly as to flow. Allowed about three hours to fill tank. When I turned on the tap it ran for approximate 30 seconds with a decent flow and THEN dropped to drips. What went wrong?

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Is this an RO system or just filtration? If so, does the membrane need replacing and/or is the GPD capacity on the membrane compatible with the system?
Another thing to look your flow rate this low at a constant rate (perhaps taking 3 hours to accumulate 30 secs worth of water)? What are the micron ratings of the filters you are using? If they are too low or at the submicron level, this could massively reduce flow.
One more're only using one tank right? Because throwing a couple inline with each other with different pressures and capacities will also do this...

Posted on Aug 27, 2010

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    Our Bosch icemaker was replaced along with the filter that comes with the unit, but we have noticed a flaky, maybe greasy particles and residue floating in the glass after the ice has fully melted. We have...

    Hello. Woobie here.

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    There may be several causes for this. Here is a list of things to look for.
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    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.
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    Water filters contain activated carbon and this can plug up upon initial usage. Remove the filter, and drain from cartridge. Refill and drain several times. If this is the issue, you will see a little black particulate at first, and it will get better. When it clears, reinstall the filter.

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