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Thread: Help on info to clean a DE filter?

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    Pool-creetin's Avatar
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    Mar 2010
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    Help on info to clean a DE filter?

    I have a hayward de filter. Its never been acid washed, and I found out recently that I have been not adding enough DE to it.
    How would I go about cleaning it? I have heard soaking it in TSP or a degreaser for a week or two or more Letting fingers soak in a big bucket of water and degreaser.)
    Do I need to acid wash it after that? Hopefully I didnt ruin it by not adding enough DE.
    PSI never gotten above 20.

    Does this info sound correct? What degreaser would you guys and gals reccomend?
    TIA
    26x16 rockwood keyhole vynil inground, waterway cartridge filter and swg, variable speed pentair pump, extra large skimmer with 2 main drains in deep end and 2 returns,Rheem raypack 206 natural gas heater, hayward tigershark qc robot. Being installed in late may early june. Woot!

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    JasonLion's Avatar
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    May 2007
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    Re: Help on info to clean a DE filter?

    You should use either TSP (the real stuff, avoid the phosphate free version) or automatic dish washer detergent. Add one cup for each 5 gallons of water (you use less with the newer super concentrated automatic dishwasher detergent). Clean the grids normally, then soak them for 12 to 24 hours in the detergent, then rinse them off throughly. You only need to do an acid wash after that if you have some calcium scaling on the grids.
    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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    Pool-creetin's Avatar
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    Mar 2010
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    Re: Help on info to clean a DE filter?

    Thank you!! How do I know ifs clean enough? I assume the fingers will be white?
    26x16 rockwood keyhole vynil inground, waterway cartridge filter and swg, variable speed pentair pump, extra large skimmer with 2 main drains in deep end and 2 returns,Rheem raypack 206 natural gas heater, hayward tigershark qc robot. Being installed in late may early june. Woot!

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