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Thread: Leak at connection to Sand Filter

  1. Back To Top    #1

    Join Date
    Aug 2009
    SF Bay Area (Lamorinda), CA

    Leak at connection to Sand Filter

    this afternoon we noticed that the concrete around our sand filter was wet and it looks like the leak originates at one of the connections to the pump:

    Any tips on further DIY diagnosis? Is it feasible to attempt a DIY fix when, as hubby says, "I don't have a wrench nearly the right size"?

    For reference - this is a bigger-picture view of our system. Hubby emptied the pump basket and re-primed the system so not all the water on the concrete is a result of the leak - original leak zone extended roughly 4-8 inches beyond the base of the filter

    1950's-era 17K gallon formerly fiberglass, newly replastered IG rectangle (~15x30'),
    Hayward S244S Sand Filter with Franklin Electric 0.75 HP motor and WhisperFlo WFE-3 pump
    Clear ThermaTex bubble cover
    Manual vacuum

  2. Back To Top    #2

    In the Industry

    Join Date
    Dec 2013
    PA. USA

    Re: Leak at connection to Sand Filter

    go to lowes by a big pair of channel locks. Try to tighten the union. Their is also O-rings on the inside of the union you could try greasing.

  3. Back To Top    #3
    zimm's Avatar
    Join Date
    May 2013
    Northern Virginia

    Re: Leak at connection to Sand Filter

    I agree with jodeci77. I bought these and have used them countless times on pool fittings.

    They are HUGE, like cartoon huge, and they fit those fittings. If you can't afford that, you can get a strap wrench for about $10, but they are rubber and tend to break easily.

    Take the union off, and try greasing the o-ring and putting it back together. If that doesn't work, take the o-ring to a plumbing supply store and get a new one for about $1.
    45'x12' 17k gal, IG plaster, Pool Pilot Nano+ SWG, 1/2hp Whisperflo pump, PAC-FAB TA-60D sand filter, Raypak 266 heater
    Pool School + Test Kit + Pool Math = Trouble Free Pool

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