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Thread: How can I tell of DE is coming through the returns?

  1. Back To Top    #1

    Join Date
    Aug 2015
    Boston, MA

    How can I tell of DE is coming through the returns?

    Hello all,

    So I added DE the other day and things were running fine. I tried connecting my vac by shutting off the main drain and shallow end valve while leaving the deep end open. Turned on the filter and when i stuck the end of the vac to the deep end all of a sudden the filter clicked and stopped and psi went down to nothing. I opened back up all valves turned the filter on again then from the deep end return I saw some white streak like coming from the return but now has stopped and not seeing anything. When the filter first turned on I saw bubbles from each return then they started running. How do I know if the DE is coming out of the return? The loud click and shutoff makes me worried something got overloaded.
    IG 15 X 30 Rectangle Vinyl Liner Built 1994
    Hayward DE 3620 Vertical Pro Grid
    AquaCal Heat Pump
    18K gallons

  2. Back To Top    #2
    Mod Squad woodyp's Avatar
    Join Date
    Apr 2010
    East Texas

    Re: How can I tell of DE is coming through the returns?

    Sounds to me like you have a suction side leak and those "white streaks" are are bubble streams. Unscrew an eyeball. wrap a knee hi around the threaded end, screw it back in, start the pump and see what you get.
    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
    2 Speed Hayward Power-Flo Matrix 85 g.p.m. 22" 250lb. sand filter hard plumbed
    Pool Rover Jr., Pool Blaster Max, Diver Dave TF100 Test Kit/Speed Stir
    Margaritaville Frozen Concoction Maker, Liqour Chiller, & Drink Mixer & Party Tub----Collect 'um all!

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