I filled my tub and checked the chemistry before heating or adding anything. My pH was 7.2 and TA was 60. After filling and heating, I added 2 cups bleach per pool calculator. I just checked tonight and of course the chlorine is really high but the pH shot through the roof! It's like 8.4 or higher. Is it normal for high chlorine level to raise the pH high also? I put a little dry acid in to lower it, but I'm wondering, does it go down as you use up chlorine?