When conducting the Calcium Hardness (CH) test using the TF-100 Test Kit, I get pinkish precipitate in the solution when I add the R-011L reagent. When I then add the R-0012 reagent, I get no color change, regardless of how much I add. I don't add copper algecide to my pool, but I did the R-0012 add prior to the R-011L reagent anyway with no change in results.
What is the problem? :?:
What is the problem? :?: