I've been using mostly Clorox bleach this season to chlorinate my pool. But it seems that every time I add bleach my ph goes up too. That means adding muriatic acid which I hate to do. Going to experiment with using Trichlor tablets for a while to see if my ph still goes up. TA is 110 and Calcium is 250. CYA is 30. So I've been adding nothing but bleach and muriatic acid. The pool is covered by a solar cover whenever we aren't using it.