Other signs of combined chlorine: chlorine odor Eye irritation -Algae growth Minimum Ideal Maximum Comments Bromine, ppm Pool 3.0 Pool 3.0-5.0 Pool 8.0 Spa 4.0-6.0 Spa 8.0 Spa 4.0 (2) Chemical Values pH 7.2 7.4-7.6 7.8 If pH is: Too High: Low chlorine efficiency Scale formation Cloudy Water Too Low: Rapid dissipation of disinfectant discomfort Plaster and concrete etching Corrosion of metals and vinyl liner damage Alkalinity (buffering), 60 ppm 80-100 for 180 If alkalinity: ppm as CaC03 halogen Too Low: compounds pH bounce with a high pH corrosion 100-120 for tendency halogen Too High: compounds Cloudy water with a low pH Increased scaling potential pH tends to be too high
Other signs of combined chlorine: chlorine odor irritation -Algae growth Minimum Ideal Maximum Comments Bromine, ppm Pool 3.0 Spa 4.0 Pool 3.0-5.0 Spa 4.0-6.0 Pool 8.0 Spa 8.0 (2) Chemical Values pH 7.2 7.4-7.6 7.8 If pH is: Too High: Low chlorine efficiency Scale formation Cloudy Water Too Low: Rapid dissipation of disinfectant Eye discomfort Plaster and concrete etching Corrosion of metals and vinyl liner damage Alkalinity (buffering), ppm as CaC03 60 ppm 80-100 for halogen compounds with a high pH 100-120 for halogen compounds with a low pH 180 If alkalinity: Too Low: pH bounce corrosion tendency Too High: Cloudy water Increased scaling potential pH tends to be too high