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Thread: Ideas about a leaking drain cap

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    Ideas about a leaking drain cap

    We just filled up our pool this year and there's a slow leak from the drain cap. I saw on the internet I can get replacement drain caps, but not sure if I'll be able to get it on with the pool full. I tried putting something firm under the drain for counter-pressure, but that didn't seem to help. Any suggestions or ideas?
    IG vinyl 26,000 gal., Hayward S-200 sand filter, Hayward HP600 heat pump

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    linen's Avatar
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    Re: Ideas about a leaking drain cap

    Welcome to tfp, lbslott

    You should be able to block the hole from the inside with a bucket or a flexible peice of rubber, etc...to slow down the leaking so that you can change/fix your plug.

    Is yours a screw on type? If it is, I would try some teflon tape on the threads before replacing it.
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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    Re: Ideas about a leaking drain cap

    Yes, it's a screw-on type. I've never heard of teflon tape, thanks!
    IG vinyl 26,000 gal., Hayward S-200 sand filter, Hayward HP600 heat pump

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    linen's Avatar
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    Re: Ideas about a leaking drain cap

    It is the same tape used to seal general plumbing threads.
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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