Can someone please explain why I use the least amount of chlorine when I have no CYA reading? I'm not understanding this. I mean, I have added 15 gallons and it did not clear the water. According to the Bleach calculator, I need to hadd 2.4 gallons to get to 10ppm. This just doesn't make sense to me. Also, how soon after adding the chlorox will I get an accurate reading?
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