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Thread: 1st Time Open; Everything okay except Filter's Manual Air Cap Leaks

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    Join Date
    Jul 2015
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    1st Time Open; Everything okay except Filter's Manual Air Cap Leaks



    I am a newbie and for the first time, my wife and I decided to open up the pool (b/c we just changed the liner and the cover was already removed).

    We followed all the instructions and tips and got to the point where we were starting the pump.

    We have a Hayward Pro Series High Rate Sand Filter S244S. The instructions say we should not close the manual air cap on top until there all the air and air/water mixture got out, and until there is a "steady stream of water". So we just followed the instructions.

    When we saw only water came out (no more air flow), I tried to tighten the air cap. However, water kept on leaking from the cap. It wouldn't stop after a few minutes and I had no choice but to turn off the pump. I tried to tighten it as much as possible by hand but couldn't stop the water.

    We repeated the process (loosen it up; turn on pump; let all air and air/water got out first; until there was only water stream; tighten it). No luck - water kept on squirting out.

    Could one of the forum experts advise how we may stop the leaks from the air cap? Thanks!!
    Last edited by Pool-owner; 07-12-2015 at 11:16 PM. Reason: typo
    In-ground, liner, 25K gallon irregular, Hayward Pro Series High Rate Sand Filter S244S, Hayward filter (1 HP), Chlorinator connected. 2 skimmers, 3 returns, 1 floor drain.

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    Texas Splash's Avatar
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    Re: 1st Time Open; Everything okay except Filter's Manual Air Cap Leaks

    Hello and welcome to the site. Typically on these air bleeders there should be a small O-ring that seals them at the base. It sounds as if you may need to replace that O-ring. You can check the owners manual or contact Hayward for a part number then Google on-line for a replacement. Many pool stores also have O-ring kits for various parts of the filer. I suspect that's the culprit.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
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    duraleigh's Avatar
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    Re: 1st Time Open; Everything okay except Filter's Manual Air Cap Leaks

    +1 what TS suggests.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: 1st Time Open; Everything okay except Filter's Manual Air Cap Leaks

    Quote Originally Posted by duraleigh View Post
    +1 what TS suggests.

    Thank you TS and Duraleigh for the quick response! I will try that first and report back.
    In-ground, liner, 25K gallon irregular, Hayward Pro Series High Rate Sand Filter S244S, Hayward filter (1 HP), Chlorinator connected. 2 skimmers, 3 returns, 1 floor drain.

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