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Thread: Pressure gauge question...

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    Jumpin' Joan's Avatar
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    Pressure gauge question...

    Installed new gel filled pressure gauge (easier to read and shouldn't suffer random freezing temps) today followed by a thorough backwash/rinse to determine base reading.

    No leaks are visible anywhere but the gauge is wavering between a bit less than 17.5 through 18 psi as opposed to holding steady as expected. Is this the norm or am I missing something?

    PS: Did use plumber's tape and hand tightened only as directed.
    13 yr. old 5000 ga. inground fiberglass pool filtered by multi-port StaRite housing 300 lbs. of glass media and powered by a 1 hp single speed pump. City water supply is aquifer based, heavily laden with copper and calcium. Drought restrictions are in place. TFPC method supported by TF-100 test kit and Taylor SpeedStir.

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    Mod Squad woodyp's Avatar
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    Re: Pressure gauge question...

    It should be just fine. Might settle a bit as sand bed settles back down.
    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
    2 Speed Hayward Power-Flo Matrix 85 g.p.m. 22" 250lb. sand filter hard plumbed
    Pool Rover Jr., Pool Blaster Max, Diver Dave TF100 Test Kit/Speed Stir
    Margaritaville Frozen Concoction Maker, Liqour Chiller, & Drink Mixer & Party Tub----Collect 'um all!

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    Jumpin' Joan's Avatar
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    Re: Pressure gauge question...

    Thanks, woodyp. Chemistry and PoolMath are so much easier for me to understand than the "mechanics."
    13 yr. old 5000 ga. inground fiberglass pool filtered by multi-port StaRite housing 300 lbs. of glass media and powered by a 1 hp single speed pump. City water supply is aquifer based, heavily laden with copper and calcium. Drought restrictions are in place. TFPC method supported by TF-100 test kit and Taylor SpeedStir.

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    Re: Pressure gauge question...

    My new glycerin filled gauge (purchased through TFP test kits) wavers about 1/2 lb also. I do not remember if my old cheapo gauge varied or not, wasn't looking for it. Could be that the old gauge was 0-60 lbs and the new one is 0-30 lbs so it might be registering pressure variation that was not noticeable with the old gauge.
    38000 Gal, IG, Plaster, 20' x 40' x 10', Attached Raised Spa, Intelliflo VS 3 HP (011018), Pentair Quad DE 60 Filter, Raypak (Rheem) 400,000 BTU (407a low Nox), Easy Touch 8 upgrade, Screenlogic 2 with wireless, IS-4 Spa Side Remote, Stenner 45MPHP10 w/15 gal tank, Intellibrite 5g (3), Dolphin Triton Plus robot with PRO remote, Water Tech Catfish handheld vacuum for spa, TF100 with SpeedStir.

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    Jumpin' Joan's Avatar
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    Re: Pressure gauge question...

    I think you're right about increased sensitivity, gary300. Over the weekend, this new gel filled gauge is already registering 18-18.5 psi. It's a minimal increase but one which would never have been noticed on my old 60 lb. gauge. Thanks for your input!
    13 yr. old 5000 ga. inground fiberglass pool filtered by multi-port StaRite housing 300 lbs. of glass media and powered by a 1 hp single speed pump. City water supply is aquifer based, heavily laden with copper and calcium. Drought restrictions are in place. TFPC method supported by TF-100 test kit and Taylor SpeedStir.

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    borjis's Avatar
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    Re: Pressure gauge question...

    Quote Originally Posted by gary300 View Post
    My new glycerin filled gauge (purchased through TFP test kits) wavers about 1/2 lb also.
    My tfp glycerin guage does this as well.
    16x32 IG Vinyl, 13,000 Gals. Hayward S-244T sand filter, SP2810X15 pump
    (1.5 HP motor) Raypak PR266AEN (266k btu) gas heater. TF-100 Test Kit.
    Dolphin E10 Cleaning Robot.

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