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Thread: Air gets in the strainer and then we can't vacuum

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    DThompson55's Avatar
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    Jun 2016
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    Air gets in the strainer and then we can't vacuum

    We have a strainer in front of our Hayward pump. The skimmer feeds the strainer. Normally I get a strong flow through the pump, and normally the strainer is full to the top with water.

    But in order to attach the pool vacuum hose to the skimmer I have to lift the flapper on the skimmer. Just lifting the skimmer flap introduces a great deal of air into the strainer unit and the pumping power of the filter drops significantly. When this happens the vacuum hose won't stay attached because there's almost no flow to hold it down. So I hold the vacuum connector in place over the strainer bucket by hand while my wife tries to clean the pool, each of us yelling at the other one that there's no vacuum. There's still some water flowing through the strainer and into the pump, so it's doing something. Eventually we give up. If we remove the vacuum attachment and wait a few minutes the pump returns to normal. Oh, and we always fill the vacuum hose with water before trying to attach it to the skimmer.

    This doesn't seem right, but it also just seems like this is how works. Is there an easier way?
    15k gallon AG. Sta-Rite System:2 PLM-100 DE filter. Hayward Power Flo LX Pump. TF-100 test kit. Nice and Blue thanks to TFP.

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    Mod Squad woodyp's Avatar
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    Re: Air gets in the strainer and then we can't vacuum

    Turn the pump off. Take the weir door OFF.......fill hose underwater getting out all air......insert through opening and into hole while still underwater. Turn the pump on!
    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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    DThompson55's Avatar
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    Jun 2016
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    Re: Air gets in the strainer and then we can't vacuum

    This was good advice. I know it should have seemed obvious, but it's easy to get stuck on something if you don't have a clue what you're doing. Also, after reading some other threads here I realized that vacuum hose was on backwards, that the swivel end goes on the other end, not the skimmer end. So that'll help too.
    15k gallon AG. Sta-Rite System:2 PLM-100 DE filter. Hayward Power Flo LX Pump. TF-100 test kit. Nice and Blue thanks to TFP.

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