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Thread: New DE Filter Grid - but DE in the pool!

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    New DE Filter Grid - but DE in the pool!

    saw DE in the pool and open the filter ... grid elements teared off.

    then I bought a whole set of DE filter grids (8 pieces). I have installed that many times so I would assume they should have been approriately installed (there might be somewhere the top manifold not exactly tight with one grid but this shouldn't cause problems).

    When I start adding DE, I can see that the white DE is still flowing into the pool!! so bad ...

    Everything else is normal ... Now there are a thick layer of DE on the pool bottom ... Please share with me any experiences you have!

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

    Re: New DE Filter Grid - but DE in the pool!

    Welcome to TFP!

    You should double check that the grids are all installed in the correct spots (usually some of the grids are slightly different sizes) and everything is fully seated down and all connections with the manifold are solid. Having the grids switched, or leaving out an o-ring or failing to fully seat the manifold into the filter can all cause problems.
    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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    Richard320's Avatar
    Join Date
    Jan 2010
    San Dimas, CA (LA County)

    Re: New DE Filter Grid - but DE in the pool!

    It could also be leftover DE in the piping from the old grids tearing
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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