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Thread: DE filter problem

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    Join Date
    Jul 2014
    Location
    Lakewood NJ
    Posts
    4

    DE filter problem

    I read Ted's very informative article on DE Filter maintanace. My Pentair 60 FNS seems to be clogged. I tried the soaking method and it helps but no great. I have a high usage pool and I wonder if all the sunscreen that everyone uses today is clogging the filter? My real question at the moment is, if I need 6 lbs of DE according to manufacturer, when I now start with a somewhat clogged filter, do I start with 4-5 lbs instead?

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    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: DE filter problem

    If you use 6 lbs of DE after opening up and throughly cleaning out your filter, you should use 80% of that, or roughly 5 lbs, when recharging after a backwash.
    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

  3. Back To Top    #3

    Join Date
    Jul 2014
    Location
    Lakewood NJ
    Posts
    4

    Re: DE filter problem

    even though there is probably a coating of some sort on the grid? Since it is not working at optimum filtration?

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