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Thread: Dirty return water when vacuuming

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    Dirty return water when vacuuming

    gresta46001 here. New to this forum, and obviously have a problem with my pool.
    21,000 gal, IG Vinyl, DE Filter, 1HP 11/2 inch pump, Hayward filter (size unknown).
    The filter has a Hayward Vari Flow valve on it.

    When I am vacuuming the pool, it works well for about 5 or 10 minutes, then the water coming from the return starts moving the dirt back into the pool. It appears the filter is not functioning properly, but is filtering most of the dirt out.
    gresta46001
    21,000 gal IG Vinyl
    Hayward Pro Series Sand Filter
    1 HP 11/2" pump

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    Mod Squad JohnT's Avatar
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    Apr 2007
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    Re: Dirty return water when vacuuming

    Welcome to TFP.

    Sounds like time to disassemble the filter and inspect the grids for holes.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

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