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Thread: Very low pressure on gauge

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    Very low pressure on gauge

    Hey all, looking for some feedback on an issue I'm having with my pressure gauge. It has been reading around 3 psi ever since I replaced the motor end of my pump (same horsepower, just a generic motor). I knew the filters were old so I thought it might just be them causing it.

    I ordered a new guage thinking it might also be bad. I installed new cartridge filters along with the gauge. The new guage is still reading 2-3 psi.

    The weird thing is I'm getting very good pressure from the returns and my booster pump/cleaner are working fine.

    Any ideas on what's going on?
    Pool: 28K gal, vinyl lined, rectangular, auto cover
    Equipment: Mineral Springs MS-10 SWG, Raypak 266A heater, Jandy CL460 cartridge filter, Pentair superflo 1hp 2spd pump, Polaris PB4-60 booster pump and Polaris 280 cleaner. TF-100 w/speed-stir

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    Roseville, CA
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    Re: Very low pressure on gauge

    Assuming it's on the filter housing, have you bled the air out?
    SWG: CircuPool (May 2014) SI30+Plus; 3000ppm seems ideal;
    My Ideal Specs:
    FC 5; PH 7.4-7.6; TA 90; CH 350; CYA 75; = SI ~ 0.19
    14,000 gal, in ground, plaster, Cartridge filter, Borates
    TAYLOR K - 2006

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    Re: Very low pressure on gauge

    What was your normal psi prior to the changeover?
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Very low pressure on gauge

    Quote Originally Posted by Chuckiechan View Post
    Assuming it's on the filter housing, have you bled the air out?
    Ya, I left the valve open until water started coming out and then closed it
    Pool: 28K gal, vinyl lined, rectangular, auto cover
    Equipment: Mineral Springs MS-10 SWG, Raypak 266A heater, Jandy CL460 cartridge filter, Pentair superflo 1hp 2spd pump, Polaris PB4-60 booster pump and Polaris 280 cleaner. TF-100 w/speed-stir

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    Very low pressure on gauge

    Quote Originally Posted by duraleigh View Post
    What was your normal psi prior to the changeover?
    It was in the high teens/low 20's with the old motor and filters. I did use Teflon tape on the threads, that wouldn't mess anything up would it?
    Pool: 28K gal, vinyl lined, rectangular, auto cover
    Equipment: Mineral Springs MS-10 SWG, Raypak 266A heater, Jandy CL460 cartridge filter, Pentair superflo 1hp 2spd pump, Polaris PB4-60 booster pump and Polaris 280 cleaner. TF-100 w/speed-stir

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    Re: Very low pressure on gauge

    I did use Teflon tape on the threads, that wouldn't mess anything up would it?
    Possibly. If the teflon restricts the water from actually entering the gauge by over lapping the orifice, that might do it.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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