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Thread: High pH?

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    swimcoachtdawg's Avatar
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    Jun 2015
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    Salem Indiana
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    High pH?

    I've been fighting a battle with high pH in my SWG pool. Is this normal? Everything else seems fine. Also, is there a post on here somewhere that tells me how to differentiate between different brands/types of muriatic acid? I really don't know what to buy, there seem so many different ones. Appreciate any help you can give!
    75'X12' 2-lane IG lap pool built in 2008. 33,000 gallons. Gunite construction with vinyl liner. All equipment is Hayward - cartridge filtration system, Mineral Springs SWG (not currently working - switched to adding chlorine manually), 300,000BTU natural gas pool heater. Also use a 4-panel solar system in summer. Pool is located inside a 25'X100' concrete block building w/natural gas forced air furnace/SIPS roof.

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    Mod Squad woodyp's Avatar
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    Re: High pH?

    An SWG will naturally cause the PH to rise with all the bubbles it produces. Look for any brand of 20 Baume MA.
    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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    Texas Splash's Avatar
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    Re: High pH?

    Something else you might like to consider .... although you didn't post it,.... but if your TA is elevated it can also draw your pH higher as well. The TFP Recommended Levels chart and Poolmath Calculator have been updated recently to accommodate for a slightly lower (acceptable) range of TA. Example: If your TA is currently 80, you might try 60.
    Pat (a.k.a. Texas Splash) ~ My Pool: Viking Fiberglass; 17,888 Gal; Waterway Supreme 2-sp/2-hp pump; Hayward Ctg filter; TF-100 w/ Speed Stir
    Vital Links: POOL SCHOOL, RECOMMENDED LEVELS, RECOMMENDED CHEMICALS, Poolmath Calculator, SLAM, Chlorine/CYA CHART.
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