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Thread: threads leaking on new booster pump

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    threads leaking on new booster pump

    Just replaced my booster pump and went to flex pipe instead of the rigid PVC. Any recommendations on a specific silicone sealant for the new threaded adapters that came with the pump. My teflon tape is not performing a tight seal. Thanks
    house/pool builder
    5x11m pool, 1.5hp pump, sand filter, salt water chlorinator
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    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: threads leaking on new booster pump

    Try a non-hardening teflon paste thread sealer. That seems to work better for the larger (over 1/2 inch) threaded PVC connections.
    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

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    In the Industry

    Join Date
    Jul 2008
    Pittsburgh, PA

    Re: threads leaking on new booster pump

    I usually use teflon paste or silicone adhesive. My store stocks boss RTV sealant for silicone adhesive so thats what I use, but I also use the blue nova guard silicone in a calk gun when I have it. That stuff is sweet, we get it with tile sometimes and I keep the extra.

    If I do use teflon tape I also silicone lubricate it with a really thick lubricant, also a boss brand but just because thats what we stock.
    Involved in the pool and spa industry
    Pittsburgh, PA

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