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  1. J

    DE Filter Issues-DE goes back through the skimmer and main drain when pump is off

    It does not leak at all from any location. I think I may have found my culprit. I think my air relief valve is leaking air in. I think after I cleaned the inside of the housing it probably started leaking since it no longer had a "DE seal." I also noticed about 2 days prior that my check...
  2. J

    DE Filter Issues-DE goes back through the skimmer and main drain when pump is off

    I do not have a multipart. All I have is the Hayward Slide valve for backwashing. Could it be that?
  3. J

    DE Filter Issues-DE goes back through the skimmer and main drain when pump is off

    Hi, Today I did a full DE replacement. Instead of just a backwash, I took the entire filter apart and cleaned out the filters individually and the whole assembly. I even took the entire filter assembly out because the bottom drain is almost impossible to get to because it is right near a...
  4. J

    New to pool DE pressure problem

    The filter size is 60 square feet. The plumbing is either 2" or 1.5" throughout. Yesterday I installed a check valve on the bypass to my spa. I replaced a very leaky gate valve that was allowing my spa to drain back into my pool because it is higher than my pool. It seems to be draining back...
  5. J

    New to pool DE pressure problem

    We just bought a new house and it has a pool. I am reading as much as I can to learn what it requires to be a good pool owner. With that said, the previous owners of the house had paid for a pool guy through September. Last week he cleaned the DE filter (washed it out and added new DE). Also...