In order to prevent scaling or corrosive action and to achieve maximum swimmer comfort, pool water should be balanced to the following levels:
| TEST | RANGE |
| pH | 7.2-7.6 |
| Total Alkalinity | 120-150 ppm |
| Calcium Hardness | 200-250 ppm (gunite) |
| Calcium Hardness | 175-225 ppm (vinyl) |
| Free Chlorine | 1-3 ppm |
| Free Bromine | 3-5 ppm |
| Copper | 0 ppm |
| Iron | 0 ppm |
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