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Thread: Are my chemistry instructions correct?

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  1. #1
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    Default Re: Are my chemistry instructions correct?

    My FC is suppose to be between 8 and 15. I now have 20ppm, after letting the chlorine go down from 25 (shock) last week by not adding chlorine. Is it harmful to for my gunite pool if I have a high chlorine FC level for an extended time? I don't plan on adding anymore chlorine, I rather have it go down to 12ppm slowly rater than draining.
    In-ground gunite 17,600 Gal, Nautilus FNS 36 DE Filter

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