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    Green pool with copper issues

    Hey all! My second season with this above ground 16k gal pool. Sand filter. my test results today: Free chlorine 4.6 Combined chlorine 0.8 Ph 7.4 Total Alkalinity 110 Calcium Hardness 120 CYA 70 Water pretty clear but green tint. waiting for chlorine to come down so I can add metal out and turn...