the Blue Hawaiian customer service rep told me to maintain the calcium hardness at a MINIMUM of 350ppm. Also have info from a pool magazine saying fg pools should be 250--400ppm.
Re: Max Chlorine PPM for Fiberglass Pools
the Blue Hawaiian customer service rep told me to maintain the calcium hardness at a MINIMUM of 350ppm. Also have info from a pool magazine saying fg pools should be 250--400ppm.
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