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Thread: Air in the pump?

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    Air in the pump?

    After a month of use, we decided to vacuum the pool. It's been installed for 4 wks and is used about 1 hr day by 2 adults (no kiIds). I use the hand held skimmer every few days if there are 'critters' floating around; other than that, the pool has been crystal clear since day 1. Being new, we thought we should try the vacuum. In our stupidity, we didn't fill the hose with water before hooking it to the skimmer and turning on the pump. No suction at all. When we turn on the pump, there is no water coming into the polol from the pool inlet nozzle. The pressure gauge measures 0. The leaf trap cover is on securely - so secure in fact that I can't open it. With the pump, I unscrewed the sediment release valve - didn't see any sediment - only clear water coming out. I unscrewed the drain valve cap on the sand filter - again just clear water. The plungers are in the "up" position (to prevent water from flowing out of the pool). I turned on the pump again. The leaf basket (still can't get the top off) refills to maybe 1/3 of the way full, but there is still no suction. I've read the manual about 20 times, reviewed "pool school" several times, searched the internet on how to get the air out, and I'm stuck. I admit I ignorant about these things. The manual/internet claims this model of sand pump has an air release valve - I surely don't see it. I am so disgusted - the pool was fine before we tried the vacuum. Whatever recommendations/solutions (be gentle please with as much detail as possible - we are novices). We are an older couple (58 and 60 yrs old) - it took us 2 weeks to grade the lawn (the pool is 99.99% level), 2 days to "snap" together this "easy" pool and another day or so to fill it. First swim day was 1 month ago and we have loved it with absolutely no problems, until now. Please help!


    Pam - so new to pools it hurts!
    Southern Virginia
    Intex 54955EG 18x52, holds approx 6800 gal
    Above ground pool (ultra steel model) w/vinyl liner
    Krystal clear sand filter pump 1600, model SF15110
    installed 1 month ago (pool is 99.999% level)
    pool gets maybe 1 hour per day usage (2 adults-no kids)
    test results (below is the norm as to what it's been since it was installed 1 month ago):
    FCI 3ppr 6(Br)
    CI 3ppm
    alk 40ppm
    pH 7.2
    CH - not tested
    CYA - not tested
    Use a floating chlorine tab dispenser
    Use shock as needed
    Pool has been clear since day 1 and water test results read "ok" (LaMotte brand and Poolmaster brand strips)

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    techguy's Avatar
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    Re: Air in the pump?

    Welcome , Pam

    I am not sure I read it correctly, you have the valves from the pool and to the pool CLOSED? This would prevent the pool's water from getting to the pump and out of the filter. Can you make sure the water can flow from the pool to the pump and back.

    I just wanted to be sure everything is OK.
    -- Guy --
    10K gallons in 21' Round 52 inch wall Aqualeader AG, Hayward Power Flow LX 1.5 HP pump motor, Hayward Perflex EC50AC DE filter w/Cellulose, Wide mouth skimmer, 2013 new Diver Dan (craigslist) to replace the faded old Hayward AquaBug. TF-100

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    Re: Air in the pump?

    Thank you techguy. Yes, the plungers are in the "up" position (the manual states this opens this valves to allow water to flow into the sand filter pump). I didn't explain it very well earlier - sorry. The hose that connects from the water outlet connection on the pump to the pool inlet nozzle appears to be full of water; the hose that connects from the skimmer to the water inlet on the pump appears to be full of water. When I turn on the power, the pre-filter housing fills about 1/2 full - I'm still unable to remove the screw on top of the prefilter unit. I loosened the o ring on the water outlet valve on the pump and a surge of "air" along with a small amount of water came out. I reconnected it and then tried to loosen the water inlet o ring. That one won't budge.

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    Richard320's Avatar
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    Re: Air in the pump?

    It should prime in a minute or less.

    Any way to aim a garden hose at the inlet in the pool and force water into the pump?
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    techguy's Avatar
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    Re: Air in the pump?

    I really know so little about these... does it change if you move them to the "down" position?

    I really wish I could be of more help.
    -- Guy --
    10K gallons in 21' Round 52 inch wall Aqualeader AG, Hayward Power Flow LX 1.5 HP pump motor, Hayward Perflex EC50AC DE filter w/Cellulose, Wide mouth skimmer, 2013 new Diver Dan (craigslist) to replace the faded old Hayward AquaBug. TF-100

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    Re: Air in the pump?

    Thanks Richard - yes, the garden hose will reach to the inlet in the pool - I'll try that in the a.m. I'm thinking it's excess air in the hose/pump/somewhere that's causing this problem. And Techguy, I'll change the plungers to the down position tomorrow and see if that's makes a difference. Thanks again for the suggestions - I do appreciate it.

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    techguy's Avatar
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    Re: Air in the pump?

    I just read something in another posting that might help. Pick up you pump, turn it over so the inlet and and outlet are swapped and see if there is and air trapped in the pump body. I assumed the pump would purge it when you opened h cap.

    Give it a try..it's free and easy.
    -- Guy --
    10K gallons in 21' Round 52 inch wall Aqualeader AG, Hayward Power Flow LX 1.5 HP pump motor, Hayward Perflex EC50AC DE filter w/Cellulose, Wide mouth skimmer, 2013 new Diver Dan (craigslist) to replace the faded old Hayward AquaBug. TF-100

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    techguy's Avatar
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    Re: Air in the pump?

    Why can't I type your... All I ever get is YOU... Operator error.
    -- Guy --
    10K gallons in 21' Round 52 inch wall Aqualeader AG, Hayward Power Flow LX 1.5 HP pump motor, Hayward Perflex EC50AC DE filter w/Cellulose, Wide mouth skimmer, 2013 new Diver Dan (craigslist) to replace the faded old Hayward AquaBug. TF-100

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    Re: Air in the pump?

    Thanks to everyone! My husband got home from his business trip this morning and we tried a little of all the above and presto! The pump is pumping, the suction is ever better than before, and the pool is fcrystal clear, and all the little bugs floating around are now gone. The few pieces of leaves at the bottom are now gone. The test strips show an "ideal" level for the chlorine, ph, etc. It seems to us the suction is twice as strong as it has been in the past few weeks. Needless to say, we won't be 'testing' the vacuum feature again any time soon. Thanks again!

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