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    CYA level

    I have a 16’ above ground pool and have recently raised my CYA level from 30 to 40. Since the change the pool is now using twice as much chlorine than before to meet pool math recommendations. I was expecting less. I am using 6 as my goal for FC.
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    Just Filled pool - no chlorine?

    I just put a new liner in my 16' round 6,000 gallon above round pool and filled it. I have added 1 gallon of Clorox and it does not register any chlorine yet.
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    Pool Math goal settings

    Is there any way to save your goal settings in pool math?
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    PH drifts up

    6,000 gal above ground pool FC=5 CC=0 PH=Drifted up to 8 in 2 days after adjusting to 7.5 TA=110 CH=160 SI=2.5 because of high PH CYA=40 Having trouble keeping PH down.
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    Sand filter media too coarse

    I am a new member of TFP. I have recently slammed my pool to kill an algae problem, and have been waiting for the filter to clear the dead algae in the water about 1 1/2 weeks. The pool is nearly clear now. I have been adding sparkle up to the filter to enhance filtration of the very fine...