As you pH is 7.2, don't use any more dichlor until you can raise it with borax. I was under the impression that you had pretty much the same chlorine before and after adding the dichlor indicating a drop of 5 - 7 ppm. If your chlorine hasn't changed since yesterday, I'd wait to get accurate results with the K-2006. If you chlorine does drop to a level you can read with OTO, then I'd bring it back up to shock level with bleach.

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