xfawkes Posted April 18, 2020 Report Share Posted April 18, 2020 Up until this point I've been using Alkavis to test Total Alkalinity which, when I add to my hot tub water, turns the water a greeny colour. I couldn't get hold of any Alkavis tablets so instead I bought some Bayrol Biolab Total Alkalinity tablets instead. When I add them to my water, it turns pink. I'm guessing they're supposed to be used in a different way or against a different scale so wondering if anyone here can give me some advice? Thanks in advance! Quote Link to comment Share on other sites More sharing options...
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