Is there another way to test PH except the pink color test? have put 2 gallon of muriatic acid in and it is still at 8.0 (I think anyway, have a hard time distinquishing the intensity of the pink color). TA is 290 -- it has come down some. FC is 4.0 tonight. Put a new liner in this spring, and so have all new water in (did this about one month ago) It looks good, but the MA does not seem to be cutting the high PH much --- is the only thing to do is keep putting more MA in? thanks for any advice.