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:D Hello everyone, I am trying to learn and understand the different color charts that are on the hth 6 way test strips box. I searched the web and found info on most of the ones listed i.e. Guideline values: (FC) Free chlorine: 0.5-1.5 ppm (mg/l) , pH figure is 7.2 – 7.6. (TA) Total Alkalinity...