AquaChek 7-in-1
Free Chlorine reading of 1 ppm
Low end of ideal
What it means
Free chlorine at 1 ppm is the bottom of the safe-to-swim range (1 to 3 ppm). Adequate but no buffer for organic load.
What to do
Bump to 2 ppm to give some headroom, especially before a hot day or heavy use. Test daily.
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