Using the BBB method. This is the best method I have found. Use allot of chlorine. Ph in check @ 110 alkalinity. Then PH goes high?? Off scale. It took 1 gallon of muriatic acid to bring ph down to 7.4. It dropped my alkalinity to 60. Had trouble at the end of summer controlling high ph. How do you keep ph down and alkalinity up? Using chlorine tabs to get my cya up.