Originally Posted by kickurasin heres the numbers copper =o iron-o ph= 7.4 cya =132 total hardness=263 total chlorine .9 total free chlorine .7 I did supershock-it as they suggested so the reading now will have a chlorine And when you shocked it, you added more CYA or calcium. You have to stop using dichlor and trichor if you want to keep the CYA down.
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