Hi. I keep a running record on an excel sheet of all my test measurements. This is our 3rd summer for our pool and we started out with a CH reading of 140 ppm and got it to the correct goal of 300. Every year it has crept up and now after opening we are at 450 ppm! How is that when we have obviously had to replace water for evaporation, etc? We do tend to have hard water in our area (Albuquerque, NM). With our drought, I obviously don't want to have to drain any and replace. Should I be worried about any consequences with this high CH reading?
I got new test chemicals last summer....perhaps I need to get new again?
Everything else seems to be in good parameters. We use the Taylor Kit K-2006 (because I bought it before I found the tfp test kits.