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Thread: Low Pressure/bubbles in Pump Basket

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    Jun 2015
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    Howell,nj
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    Low Pressure/bubbles in Pump Basket

    I just opened my pool and my sand filter does not seem to be working properly. The pump basket is not filling with water and after about an hour of being on, the filter is barely moving water. Once I turn on, the return jets are pumping a lot of bubbles. I am aware that this is most likely an air leak somewhere, but any other help would be greatly appreciated!!!

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    n240sxguy's Avatar
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    Re: Low Pressure/bubbles in Pump Basket

    What kind of pool, pump, and filter is it? If inground, did you fill the pump basket with water before you turned it on? Have you tried backwashing the filter? How about recirculate to bypass the filter? The first time you start it up after being closed for the winter there will be bubbles until the filter is full unless you run it on rinse for a couple minutes to fill it up. If it still has a lot of bubbles after all of that, there's an air leak somewhere before the pump.


    30K gallon IG vinyl. 1.5HP 2-speed Waterway Mustang pump. 600 lb sand filter. Polaris 280. Circupool SI-60+. TF-100

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    Re: Low Pressure/bubbles in Pump Basket

    It is an above ground pool, heyward sand filter and pump. I thought I had filled it, I have backwashed and rinsed. I did not recirculate, should I try that? the water will flow well into the pump basket for about 20 minutes and then the only water you seeing going in is the water from the hose. also when attempting to vacuum I am only able to hold pressure for about 3-4 minutes.

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    n240sxguy's Avatar
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    Re: Low Pressure/bubbles in Pump Basket

    An above ground pump is a flooded style pump so you don't even have to fill it. It is below the pool level, so it stays full that way. Sound like you have a leak at one of the connections. Is it flex or hard pipe PVC? Check any unions or other connections you have. You can run water over each connection to see if that improves it, then you'll know where the leak is. You can also put shaving cream on all the joints and you should see it get sucked in wherever it is leaking.


    30K gallon IG vinyl. 1.5HP 2-speed Waterway Mustang pump. 600 lb sand filter. Polaris 280. Circupool SI-60+. TF-100

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    Re: Low Pressure/bubbles in Pump Basket

    I have flex piping. I will check all of the connections and possibly check for a blockage inside of the basket. hopefully this fixes the issue

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    n240sxguy's Avatar
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    Re: Low Pressure/bubbles in Pump Basket

    Check the impeller after you check the fittings. Could be something blocking it.


    30K gallon IG vinyl. 1.5HP 2-speed Waterway Mustang pump. 600 lb sand filter. Polaris 280. Circupool SI-60+. TF-100

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