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Thread: Gauge won't drop to zero

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    Skitch's Avatar
    Join Date
    May 2015
    Athens, Georgia

    Gauge won't drop to zero

    When I turn my pump off, the gauge drops from 25psi to 10 psi.

    Should I get a new gauge? I thought the glycol filled one I purchased last season would still be good!
    18k gal AG Sand Filter K-2006

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    Mod Squad Patrick_B's Avatar
    Join Date
    Jun 2011

    Re: Gauge won't drop to zero

    It should. Did you snip the tip off the little black insert on the top of the guage? If not, you might try that and see if it drops it to Zero. It's a pressure equalizer, and doing this might fix it.
    TFP Moderator
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    jeffchap's Avatar
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    Jun 2012
    Edmond OK

    Re: Gauge won't drop to zero

    Pull open the little doo-dad on the top to equalize the pressure.

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    Isaac-1's Avatar
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    May 2010
    SW Louisiana

    Re: Gauge won't drop to zero

    If that does not work, unscrew it and see if the pipe stem is clogged
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    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Tucson, AZ

    Re: Gauge won't drop to zero

    Weirdly I noticed mine was only going down to about 2 PSI. I pulled the black rubber stopper off and the pressure reading actually went up which was not expected. So I shoved the stopper back on and the pressure seemed to go down closer to 0 and I called it good enough
    Jason, TFP Moderator
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