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Thread: Problem with prime!

  1. Back To Top    #1

    Join Date
    Jun 2016
    Location
    Danville, ca
    Posts
    4

    Problem with prime!

    I recently noticed a problem with the pump acheiving a prime. The problem that I'm having is that there seems to be a large rush of air that I can see in the pump basket and check valve right as prime is achieved. Pressure on the filter quickly zeros right after it builds to normal operating pressure. The pump seems to prime for a brief second before losing its discharge pressure. I found a leak at the quick connect in the discharge side which was replaced with no change in the prime. I have also checked all gaskets and replaced the check valve as I noticed there was a stripped out screw in the cap. Any suggestions where this air is coming from?

    On a side note the pool equipment is located about 10 feet above the pool.

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  2. Back To Top    #2

    Join Date
    May 2013
    Location
    Ontario, Canada
    Posts
    61

    Re: Problem with prime!

    Soapy water is your friend when looking for air leaks.

    Are you able to bleed the air from your filter pressure valve? Does it return?
    18' x 36' vinyl steel wall pool with deep end, 2 lights and 6' steps, main drain, SWG, Cartridge Filter, 320,000 BTU Rheem heater, 3/4HP 1 stage pump - Ontario, Canada

  3. Back To Top    #3
    Mod Squad jblizzle's Avatar
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    May 2010
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    Tucson, AZ
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    37,389

    Re: Problem with prime!

    Welcome to TFP!!!

    Please add your pool details to your signature as described HERE as it will help us help you.

    Is the water in the pool high enough in the skimmer? Is the skimmer weir door getting stuck?
    You can use shaving cream to look for suction leaks.
    See: Pool School - Suction Side Air Leaks
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  4. Back To Top    #4

    Join Date
    Jun 2016
    Location
    Danville, ca
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    Re: Problem with prime!

    Yes I am able to bleed air and yes it still returns

  5. Back To Top    #5

    In the Industry

    Join Date
    Jun 2016
    Location
    Tampa
    Posts
    62

    Re: Problem with prime!

    My guess is low pool water and/or your skimmer flap is stuck (or there is something obstructing flow in your skimmer). Do this... turn your pump on and go look in your skimmer... does it move water for a few seconds... then, as the pump primes, it starts sucking everything down like a waterfall (thereby getting air into the system) then it stops and eventually repeats the process?

  6. Back To Top    #6

    Join Date
    Jun 2016
    Location
    Danville, ca
    Posts
    4

    Re: Problem with prime!

    Yes the water level is plenty high and door is working properly
    18,000 gallon. 1.5 hp Hayward RS100 pump with sta-rite filter

  7. Back To Top    #7

    Join Date
    May 2013
    Location
    Massachusetts
    Posts
    146

    Re: Problem with prime!

    Are you getting bubbles in the pump basket?
    25,000 Gallons Inground, Gunite
    DE, Hayward Filter
    Loud pump
    Hayward navigator cleaner, leaf hose suction

  8. Back To Top    #8

    Join Date
    Jun 2016
    Location
    Danville, ca
    Posts
    4

    Re: Problem with prime!

    Problem solved thank you. The skimmer door was moving but it could not fully open as the was a small twig jammed in the hinge. Thanks for your help!
    18,000 gallon. 1.5 hp Hayward RS100 pump with sta-rite filter

  9. Back To Top    #9
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Problem with prime!

    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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