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Thread: DE sediment in pool

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    Join Date
    Jun 2016

    DE sediment in pool

    Just bought a house with a DE filter. The filter was in the basement for the winter and didn't look like it was in bad shape. I noticed a couple of spots where the fins had been repaired with some epoxy but it doesn't appear it is filtering much out of the pool. The PSI hasn't changed more than 1 or 2 and when I add DE after back washing it pours through the return jets into the pool. Can small holes cause this large of an issue? I figured it would work at 90-95% capacity if less than 1% of the filter surface area had rips. Are there any cheap repairs? It looks like replacing all the fins could be 500-700 bucks. All my levels are good except a lot of powdery sediment on the bottom (DE, dead algae, pollen, hopefully not gunite!)

    Thanks for any advice.

    40x20 Inground gunite pool, Nautilus NS72 DE filter, Hayward super pump

  2. Back To Top    #2
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Tucson, AZ

    Re: DE sediment in pool

    Welcome to TFP!!!

    You should be able to get a full set of grids on Ebay for ~$150. That is where I got my Unicel grids.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
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  3. Back To Top    #3
    Richard320's Avatar
    Join Date
    Jan 2010
    San Dimas, CA (LA County)

    Re: DE sediment in pool


    You need new grids, period.

    What you were trying is akin to hoping a balloon will hold air because it's just a pinhole.
    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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