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Thread: DE fliter leak

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    DE fliter leak


    I have a DE filter that is running at 20psi, and seems to work fine when the pool pump is on, but when the pool pump goes off, water streams (not trickles) out of the top the DE filter. Any idea what is causing it? Appreciate any help you can give me...thanks!
    12.5K gallons, AG - 15x30 oval, 2 hp 2 speed Pump, 22" Sand Filter, 25 sq ft Cartridge filter, AstralPool VX7S Salt Chlorinator, TF-100

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    mas985's Avatar
    Join Date
    May 2007
    Pleasanton, CA

    Re: DE fliter leak

    You have a leak in an o-ring. It may seal fine when the pump is on and the pressure is higher but loosen up when the pump is off. Is there a fitting where it is leaking (e.g. air release, pressure gauge, valve, etc)?
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, MaxFlo SP2303VSP, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

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