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Thread: Is the Filter Pressure Gauge supposed to work only during Priming?

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    Join Date
    Jun 2016
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    Phoenix, AZ
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    Is the Filter Pressure Gauge supposed to work only during Priming?

    I noticed that my filter pressure gauge only works when the pump is priming; as soon as it starts running at my set RPM (750), the gauge drops to 0. During priming it's around 22. This doesn't seem normal to me, as there should be pressure while the pump is running right?
    12,000 gal, plaster, in-ground pool
    Filter: Sta-Rite Systems:3 S8M150 Modular Media
    Pump: Pentair 011018 Intelliflo Variable Speed High Performance Pump

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    Mod Squad jblizzle's Avatar
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    Re: Is the Filter Pressure Gauge supposed to work only during Priming?

    At low pump speeds, it is very common for the gauge to not register. Just comes down to the quality of the gauges I think. Nothing to worry about. Just check the pressure at higher speed to determine filter cleaning time.
    Jason, TFP Moderator
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    Join Date
    Jun 2016
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    Re: Is the Filter Pressure Gauge supposed to work only during Priming?

    Quote Originally Posted by jblizzle View Post
    At low pump speeds, it is very common for the gauge to not register. Just comes down to the quality of the gauges I think. Nothing to worry about. Just check the pressure at higher speed to determine filter cleaning time.

    Good to know! Thanks!
    12,000 gal, plaster, in-ground pool
    Filter: Sta-Rite Systems:3 S8M150 Modular Media
    Pump: Pentair 011018 Intelliflo Variable Speed High Performance Pump

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