Susanj Posted May 15, 2018 Report Share Posted May 15, 2018 Members 0 79 posts I find this interesting -the owner's manual for my spa gives recommended levels for chemicals and it is quite different from the box of test strip recommendations. Even different test kits show different recommended levels. For instance , bromine 3-5 ppm vs 2-6 Chlorine 2-5 vs 2-4 pH 7.2-7.8 vs 7.2-7.5 or 7.4-7.6 Alkalinity 40-120 vs 80-120 Hardness 50-150 vs 100-400 Maybe this just shows it's not all that critical and there is a wide range of acceptable? Quote Link to comment Share on other sites More sharing options...
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