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  1. J

    Cartridge filter drops pressure quickly when starting

    Follow up to this - the issue appears to have been a problem with my pressure relief valve. I replaced it (due to hearing a whistling noise from it after further testing), and the PSI readings stay steady at 4-5 PSI, which is consistent with historical performance out of this filter. Hope this...
  2. J

    Cartridge filter drops pressure quickly when starting

    I do understand how the pump/filter should work. The concern I have is that the pressure is not great from the returns to the pool. During one test, I turned off the pump, and removed the entire pressure relief assembly from the top of the filter tank, and no air entered the system (could not...
  3. J

    Cartridge filter drops pressure quickly when starting

    I just finished up cleaning my cartridges and after reassembling the filter, I have an issue where when the pump primes, the pressure reading on my gauge goes to 12-15 for about 5 seconds, then steadily decreases all the way down to 0. If I open the air valve while priming, water eventually...