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Thread: Pentair Flow and Prime???

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    Pentair Flow and Prime???

    I have the strangest issue. I have a Pentair system that wants to be an enemy. I checked all the seals on this system. When you first start it has a strong pressure. Then it slowly dies off. I can't use my pool scrubber to keep the pool clean. The pump has good pressure and nothing is clogged. The filter is clean. How can I keep my system primed and pressured? Thanks.
    10,000 GAL/AG
    Pentair / carteridge/1HP motor
    Installed 2011, rental property

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    Re: Pentair Flow and Prime???

    How long does that process take and what happens to your psi during that period of time?
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Pentair Flow and Prime???

    2-3 minutes and about 10 psi. It doesn't recover or start over. I have tried releasing any pressure or air in the tank to no success.
    10,000 GAL/AG
    Pentair / carteridge/1HP motor
    Installed 2011, rental property

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    Re: Pentair Flow and Prime???

    The psi shouldn't stay steady at 10 during that time. It should be going up or down. Please recheck.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Pentair Flow and Prime???

    No luck. I think its broke because it doesn't move up and down. Or do you think this might help with the diagnosis?
    10,000 GAL/AG
    Pentair / carteridge/1HP motor
    Installed 2011, rental property

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    Re: Pentair Flow and Prime???

    A working gauge is essential. Get the gauge fixed (any pool store, HD, Lowes, K-mart) and it will tell us which side of the pump the blockage is.

    You should have a working gauge on your pool system anytime it is in operation.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Pentair Flow and Prime???

    Ok, I did tap on the gauge and it went up to about 17 psi. I turned it off and it went to zero. Turned it on and tapped on it again. It's running about 16 psi now. I will work on getting a new gauge. thanks!
    10,000 GAL/AG
    Pentair / carteridge/1HP motor
    Installed 2011, rental property

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    Re: Pentair Flow and Prime???

    Now, it sounds like it is working. So start that sequence again where you lose flow and prime and watch the psi and tell us whether the gauge goes up or down.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Pentair Flow and Prime???

    As soon as I put on my hose to clean the pool is when it loses pressure. It drops it back down to 10 or lower. Seems like it can't reduce its intake of water or it should maintain prime right?
    10,000 GAL/AG
    Pentair / carteridge/1HP motor
    Installed 2011, rental property

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    Re: Pentair Flow and Prime???

    Found the air leak. I knew that was it but just couldn't see clear. I also will be gettinga new pressure gauge. Thanks.
    10,000 GAL/AG
    Pentair / carteridge/1HP motor
    Installed 2011, rental property

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    Re: Pentair Flow and Prime???

    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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