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Thread: High PH, High TA... thought I had mustard algae. ;)

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    Join Date
    May 2014
    Location
    Montgomery, NY
    Posts
    22

    High PH, High TA... thought I had mustard algae. ;)

    So silly me thought I had mustard algae.... weird yellowish/light brownish substance in the bottom of our Crystal clean pool. I shocked (according to pool math to MA levels) and brushed it. Did the overnight test and lost 0 chlorine. I suddenly realized my solar cover, deck, grill and car were COVERED in a pollen film. Totally felt silly.

    3 days later I've barely lost any chlorine. My ph is 7.8 maybe 8 hard to tell and my TA is 140. I already have some acid on hand to tackle that issue..but my question is...

    should I let the chlorine level go down before adjusting TA so I don't drop the PH too much? I have read with high chlorine the PH can look misleadingly high...I'm loving the accuracy of this k2006 kit!
    AG Intex 16'x48" ultra-frame pool. 16" intex sand filter.

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    Texas Splash's Avatar
    Join Date
    Jun 2014
    Location
    South-Central Texas, Marion/San Antonio
    Posts
    12,934

    Re: High PH, High TA... thought I had mustard algae. ;)

    Yes, let the FC drop below 10 so you can get an accurate pH reading before going to far. Good luck!
    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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