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    pH won't come down and test kit won't give accurate readings

    FC - 1ppm CC - 1ppm pH - 8 plus TA - ?????(using taylor kit and reading is turning yellow, instead of pink, after about 15 drops CH - 100ppm This is a commercial pool used for swim lessons and it is tested several times a day when we are open, but we are closed for 2.5 days a week and when I...