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Thread: Air in filter

  1. Back To Top    #1

    Join Date
    Apr 2014
    Winter Haven, FL

    Air in filter

    Everytime I come home from work I can open the pressure release valve and air comes out. I'm thinking it shouldn't be like this, still new, but I don't know where I would be drawing in air. The basket part is always pressurized, and when the filter is off and I open the pressure relief the water goes down. is the air in the filter normal?
    About my pool: 15x32 IG Gunite, 16.2k gallons, SWG, Solaxx PureChlor, Cartridge filter

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: Air in filter

    No, air in the filter is not normal. If there is a small air leak in the plumbing it can cause the effect you describe. A large air leak will cause the pump to lose prime or an obvious water leak, but a small air leak is difficult to notice and has little effect other than filling the filter full of air.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  3. Back To Top    #3
    Richard320's Avatar
    Join Date
    Jan 2010
    San Dimas, CA (LA County)

    Re: Air in filter

    Air getting into the system points to a suction side air leak. I'll recycle my usual response. You might also try using the search box for suction side air leaks.

    Round up the usual suspects: low water level, stuck weir (flapper) in the skimmer, loose drain plugs on the pump, poor seal on the pump strainer basket, and leaks at the fittings, especially any couplings.

    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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