Most of the time, the 10 ml test (0.5 ppm chlorine per drop of FAS) is the best choice. You rarely need to know your chlorine level to the nearest 0.2 ppm!)
Re: pH/Alkalinity a little too comfortable?
Most of the time, the 10 ml test (0.5 ppm chlorine per drop of FAS) is the best choice. You rarely need to know your chlorine level to the nearest 0.2 ppm!)
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