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Thread: Sand Filter Air Relief Valve

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    In the Industry

    Join Date
    Jul 2015
    Fairbanks, AK

    Sand Filter Air Relief Valve

    I just installed a new air relief valve on a sand filter because of a pinhole leak in the old one. For some reason when I open the new air relief valve to bleed out some air water shoots out and when I shut the valve water is still coming out. Then I shut off the pumps close the valve and start it up again it stays shut. Not really sure whats going on, the valve is brand new..Any insight?
    Commercial Pool Facility| Pool 35,000Gal, Pentair Inelliflo VS, Pentair Triton II 140, CircuPool SI 35 +| Indoor Spas 12,500Gal, Pentair Intelliflo VS, Pentair Triton II 100, Circupool Si 25+| Outdoor tub 10,000 Gal, Pentair Intelliflo VS, Pentair Triton II 100, Circupool Si 25+

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    Re: Sand Filter Air Relief Valve

    There's usually debris in the water that can get inside the valve and prevent it from closing fully. Typically, it's lighter debris like Styrofoam or organics etc that float.

    With the system off, the valve actually sucks in air, which can clear the valve. I wouldn't worry about clearing the air using the air relief. The air will usually clear on its own.
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