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Thread: losing prime when pump is off

  1. Back To Top    #1

    Join Date
    Apr 2010
    Central NJ

    losing prime when pump is off

    I'm losing prime when the pump is off. it doesn't happen immediately, it takes a couple of hours. I also hear a noice when the pump is running, and I don't know if it's related. It sounds like dirt is running thru the multiport vavle. I don't have air in my pump strainer basket, so that seems to be ok.

    any ideas?
    23K gallon, IG, Vinyl, Hayward DE-3600 Filter, Raypak 406A Heater, Hayward 1.5HP SP2610X15 pump aka AO Smith UST1152, TF-100 Test Kit

  2. Back To Top    #2

    Join Date
    Mar 2007
    Coastalish 'down easter'

    Re: losing prime when pump is off

    You have a small leak in the system that allows air in to break the prime. It's not a huge issue but, if it really bothers you, you can try the leak detection tricks in pool school and report back.
    Luv& Luk

    Having done construction and service for 4 pool companies in 4 states starting in 1988, what I know about pools could fill a couple of books - what I don't know could fill a couple of libraries :-D

    POOL SCHOOL, TF Testkits, Jason's Pool Calculator, CYA vs. cl chart, (Just a few DARNED handy links!)

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