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Thread: DE filter problem

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    Join Date
    May 2016
    Location
    El Paso tx
    Posts
    3

    DE filter problem

    Hello all this may be a dumb question but My wife and I have had this underground pool for about 2 years and it's been hard to keep maintained. I just recently found out that I have a de filter which I have not been adding any de too the time that I have lived at my home. This explains the cloudiness and why it's impossible to keep clean. The owner before me never told me and I'm to dumb to have figured it out long ago. My question is that I have heard that I would need to purchase new filters he says the old ones are now ruined, but would I be able to add de now? The filters have no tears on them and no visible signs of damage that I can see. They are quad 60 de filters and the they cost about $50 each and there are 4 of them. Any advise would be much appreciated.
    12000 gallon, 1 1/2 hp superflo with de quad 60 cartridge filter , plaster ,kidney bean shaped pool

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    Casey's Avatar
    Join Date
    Apr 2007
    Location
    SW PA
    Posts
    10,157

    Re: DE filter problem

    You can try and clean them by soaking the grids in a solution of Muriatic Acid n water.
    DE Filter Cleaning Tutorial
    I'd bet you my bikini you'll never get TFP water from a pool store!

    24' Sharkline Venture De Filter

  3. Back To Top    #3

    Join Date
    May 2016
    Location
    El Paso tx
    Posts
    3

    Re: DE filter problem

    how long would you recommend ? And whats the ratio of water to acid??
    12000 gallon, 1 1/2 hp superflo with de quad 60 cartridge filter , plaster ,kidney bean shaped pool

  4. Back To Top    #4

    Join Date
    Sep 2013
    Location
    Charleston, SC
    Posts
    535

    Re: DE filter problem

    5900 G Fiberglass IG pool (circa 1990), SWG Hayward Aqua Rite GoldLine (2013), IntelliFlo Variable Speed Pump (2013), Hayward Pro Sand Filter (circa 1990), Well water (no iron or other metals fortunately), test with Taylor K2006C, Charleston, SC

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    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: DE filter problem

    There's a link buried within the link Casey posted: Use and care for DE filters

    To chemically clean the grids/ nest:
    1) Have a bucket/container large enough to hold the entire assembly - A large plastic garbage can works well.
    2) #1 Add some TSP (tri-sodium-phosphate) to the water or some electric dishwasher detergent to the water and soak the grids for at least 3 hours - this will "de-grease" the membranes and is the first step in cleaning them, rinse with hose and get ready for step 3.
    3) Dump the container, refill with water and add muriatic acid to the water so that you have a 10:1 water:acid mixture and soak the grids for at least another 3 hours, this will clean any calcium off of the grids. Rinse grids again and reinstall them in the filter.
    4) Now, run pump and bleed off the air from the filter and add 100% of the DE the filter calls for.
    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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