| Reading |
Description
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Ideal Range
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| Chlorine |
Chlorine disinfectant – most common sanitizer in pools. Chlorine residual (chlorine remaining after all reactions and dissipations have occurred) is measured in parts per million (ppm). |
The ideal range is 1.0 to 3.0 ppm. |
| Bromine |
Alternative sanitizer to chlorine – bromine is not as harsh on skin, eyes, hair and swim wear as chlorine. Bromine residual is measure in ppm. |
The ideal range is 3.0 to 4.0 ppm |
| pH |
pH level is the acid/base content of water. Proper levels should be maintained in order to prevent eye/skin irritation as well as surface and equipment damage. |
The ideal range is 7.2 to 7.6 ppm
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| Total Alkalinity |
Total Alkalinity is the measure of certain minerals in the pool water. These minerals act as a buffering agent that allow for the control of pH levels. |
The ideal range is 100 to 150 ppm (plaster pools) 175 to 250 ppm (fiber glass, vinyl or painted pools)
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| Calcium Hardness |
Calcium hardness is the level of calcium and magnesium minerals in the water. These minerals exist naturally in all water. |
225 to 300 ppm (gunite pools) 175 to 250 ppm (fiberglass, vinyl or painted pools) |
| Stabilizing Chemicals |
Stabilizers prevent ultra-violet rays of the sun from prematurely dissipating chlorine. Also referred to as cyanuric acid. |
The ideal range is 40 to 100 ppm |
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