Page - 8 CHEMISTRY LEVEL CHART (RESIDENTIAL) CHEMICAL POOLS SPAS Chlorine 1.0 – 3.0 ppm 3.0 – 5.0 ppm Bromine 2.0 – 6.0 ppm 2.0 – 6.0 ppm Cyanuric Acid 30 - 50 ppm 30 - 50 ppm pH 7.4 – 7.6 ppm 7.4 – 7.6 ppm Total Alkalinity 80 – 120 ppm 80 – 120 ppm Calcium Hardness ...