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Thread: Is it normal to have air built up at the filter relief valve

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    mkmscr's Avatar
    Join Date
    Mar 2013
    Location
    CT, USA
    Posts
    45

    Is it normal to have air built up at the filter relief valve

    So I have cleaned my DE filter a few times. Perfect article, thank you. However, since my last cleaning I seem to always have air built up at the filter pressure relief valve when I open it. Only takes about 3 seconds and air is replaced by water. Is it normal to have air built up at the filter relief valve or should it pretty much stay charged with water once the air is released? I don't have bubbles in my pump basket and I usually don't see bubbles from the returns (unless it's just starting up). Am I being paranoid by releasing air once a day from the relief valve? Is it normal to have air at the relief valve?
    17x27x37 (24000 gallons) Lagoon Vinyl liner, Hayward Eco VS Pump, Hayward 4350 DE Filter, Auto Pilot SWG, Savi LED Lighting, Maytronics Dolphin M4 Vacuum

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    Join Date
    Jul 2011
    Location
    Perrysburg, OH
    Posts
    88

    Re: Is it normal to have air built up at the filter relief valve

    That's common if you have a bad seal or tiny air leak somewhere in the system. Top of the filter is typically the high point so that where the air will go. Of it just started since last cleaning I check the seal on the filter. Lube it up again and make sure she is nice and tight.... Ha

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