keith55

Richard, I enjoyed the explanation on aeration and pH. I've followed the tread on Water Quality and its been very helpful. Our municipal water supply come from an usually aquifer. pH 8.3 TA 230 CH 30 I've been trying to get my spa in balance, and have had problems with pH drift. Over several weeks I've added 3/4 cup of muriatic acid and 10oz Cacl2. The pH has stabilized at 7.7, but the TA is low and my CSI is negative. Spa 375 gallons pH 7.7 TA 30 CH 140 Temp 100 If I add baking soda, run the problem with pH. Any suggestions. Thanks, KEith

What is aeration doing chemically to increase pH? Thanks