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Thread: DE Back up into pump

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    Join Date
    Jul 2016
    Location
    chester ny
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    18

    DE Back up into pump

    While trying to fix the DE into the pool problem I noticed this am that there was green DE looking water that backed up into the clear tube that leads to the pump as well as the covered filter basket on the pump.. It's never done that before.. Could that be related to the DE into the pool problem..
    Older in ground oddly shaped pool 24,000 gallons gunite
    Hayward EC 75 De filter w/ fingers
    no multi port valve

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    Texas Splash's Avatar
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    Jun 2014
    Location
    South-Central Texas, Marion/San Antonio
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    12,928

    Re: DE Back up into pump

    Not totally sure the two are related at this point. When we think of DE going "into" the pool from a return, we think of a compromised grid or finger - something letting the DE get past the filtration area. When DE and water flows backwards towards the pump (when off) we look at a possible equalization issue. A common example is a small leak that allows air to enter the system and then lets water flow backwards. Some systems might tend to allow water to flow backwards based on the way the components are configured, elevation, etc. Some folks have a check valve installed to help prevent such things and to also help keep the pump primed.

    The other thing that stands-out is your comment about "green water". Don't think that's a good sign. Are you battling algae at the moment by doing a "SLAM"? If you need any help with that or would like to post a full set of test results feel free to do so.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
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  3. Back To Top    #3

    Join Date
    Jul 2016
    Location
    chester ny
    Posts
    18

    Re: DE Back up into pump

    I just found a new Hayward C 75A for $477. Problem solved. I was searching for answers when I came upon a blog that said the lifespan of a DE filter is about 10 years. My filter came with the house when I bought it 20 years ago. Between the $ for parts and chemicals that I'm burning through it made sense to me..
    Older in ground oddly shaped pool 24,000 gallons gunite
    Hayward EC 75 De filter w/ fingers
    no multi port valve

  4. Back To Top    #4
    Mod Squad pooldv's Avatar
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    Aug 2012
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    DFW, TX
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    23,994

    Re: DE Back up into pump

    Sounds like a good plan.
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