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Thread: Low suction with vacuum

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    Low suction with vacuum

    I'm new to this site. I'm having problems with vaccum suction on an above ground pool. I've replaced the hose and the connector piece to the skimmer. Pump works great prior to hooking up the hose. It immediately loses suction. I'm extremely frustrated and am out of ideas. Please help!!!

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    Mod Squad JohnT's Avatar
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    Re: Low suction with vacuum

    Welcome to TFP!

    Chances are your hose can't supply enough water to keep your pump primed. Try using a skimmer plate designed for an above ground pool which has a bypass to let water flow directly into the skimmer while using the vacuum. Or you can drill progressively larger holes in a fixed skimmer plate until it works.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

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    topher's Avatar
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    Re: Low suction with vacuum

    just curious, you are removing all the air from the hose first right? if there is any air in the hose, the pump will immediatly lose it's prime.
    13500 gallon AG, build late 90's, Hayward S220T sand filter,1Hp aqua coastal
    Gasser BBQ broilmate 155154 LP, Smoker CGK (akorn)

    ,

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    Re: Low suction with vacuum

    I'll try the skimmer plate with the bypass. Thanks very much.

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    Re: Low suction with vacuum

    Regarding air in the hose, yes I'm removing all the air. I've done this forever and have never had this problem. The pump is new, but seems to work great until I hook up the hose. Thanks for the reply.

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    topher's Avatar
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    Re: Low suction with vacuum

    Okay. Is it possible that there is a blockage in the hose? Also if you have broken rib or something it would suck air instead of water.... That could be the cause.

    13500 gallon AG, build late 90's, Hayward S220T sand filter,1Hp aqua coastal
    Gasser BBQ broilmate 155154 LP, Smoker CGK (akorn)

    ,

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    Re: Low suction with vacuum

    Hi!, I'm new to the site but I've had one inground and one above ground pool over the past ten years. With the inground we had a Hayward cleaner with about 50 ft of hose on it. If we had it out for any reason I would take the hose sections apart and then re-attach one section at a time to the cleaner allowing it to sink deeper into the pool until all the sections were on and full of water, then I attached the hose to the skimmer and it always worked great. If I didn't make sure each section was full it just wouldn't work. Another thing you need to make sure of is that the pump capacity flow rate is at least what the cleaner/vac. manufacturer is calling for.

    We have a Summer Escape 18 ft. x 48 inch above ground (5200 gal.) that I just replaced the original pump and cartridge filter with a sand filter and a pump rated at 1500 gal per hour. It works very well with the exception of the Intex floating skimmer that I bought. The support bracket that goes over the pool ring keeps twisting which allows the skimmer to turn sideways and starves the pump for water. Any answers on how to stop that? I'm sure I'm not the first person to have that problem. Seems like a "saddle" 6 or 8" wide to straddle the ring would keep the skimmer where it belongs.

    gjscott45

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    Re: Low suction with vacuum

    Re the skimmer, sounds like your hose is too short, or you are trying to position it too far from the thru-wall fitting

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    Re: Low suction with vacuum

    Not sure which pool you have but the intex plunger valve, new style, has a valve on top for bleeding air. It also has a sping loaded valve that allows air in if the inlet gets blocked. On my pool, I had to seal that valve to get my vacuum working properly. Keep in mind it's a safety feature so if you have young children who could become trapped by the intake, look for a less permanent solution.

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