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Thread: Help! Filter is simultaneously filtering and backwashing!?

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    Help! Filter is simultaneously filtering and backwashing!?

    Local pool co just replaced the filter dome on my Hayward DE filter due to a leak. I noticed water was low so I shock and add water. Continue to notice my water level isn't rising and go to find out that water is pouring out of the end of my backwash pipe, although my spider gear is set on filter and pool is running normally with return jets and filter working.

    Please help!?
    12' x 36" round Intex metal frame vinyl pool
    2500 gallons (well water filled)
    Intex model 603 (530GPH) pump / Cartridge A

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    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: Help! Filter is simultaneously filtering and backwashin

    Welcome to TFP!

    There must be something wrong with the multi-port valve. It might be as simple as replacing the spider gasket, or there might be something more serious wrong with it.
    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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