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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...

Hello Everyone! I'm new to the TF web site and forum. Last October, my wife and I purchased and Arctic Spa Summit LE with Onzen salt system. We have had one heck of a time trying to learn good hot tub chemistry partially because we thought the salt system took care of itself pretty much. Now we...