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Thread: DE coming back to haunt me!

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    remo1955's Avatar
    Join Date
    May 2016
    Raynham, MA

    DE coming back to haunt me!

    I have noticed that when I shut off the filter and then remove the chlorinator lid I get a backwash of DE up through the floor drain.
    I attribute this to a bad check valve in the filter. Any ideas? Also, I noticed yesterday a stream of DE coming out of the two returns after I shut down, bumped and turned back on. Could this be a ripped finger or diaphragm gasket? Thank you
    20X40 inground, Hayward perflex DE system,
    one skimmer, one floor drain/intake, two returns, 8.5 in deep end

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    TFP Guide

    cowboycasey's Avatar
    Join Date
    Jul 2013
    Fletcher, OK

    Re: DE coming back to haunt me!

    Welcome to TFP

    I do not have a DE filter but that's what it sounds like, here is a good video on how to clean and replace

    Pool: Intex 16x32 15000 gal, 2 speed 340042, Pentair CC320 Filter, CircuPool SJ45 Salt System, Intermatic PE653RC; Hot Tub: 650 Gal SWG Megachlor
    links: pool school * Recommended-Levels * SLAM * CYA chart * Test kits * How To Post Pictures * Poolmath * OCLT ** Support your website if we helped you :) **

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