IDEAL CHEMICAL LEVELS
Salt 2700 to 3400 ppm
Free chlorine 1.0 to 3.0 ppm
pH 7.2 to 7.6
Cyanuric Acid
(Stabilizer)
50 to 100 ppm
Total Alkalinity 80 to 120 ppm
Calcium Hardness 200 to 400 ppm
Metals 0 ppm
Saturation Index -.2 to .2
Saturation index
The saturation index (Si) relates to the calcium and alkalinity in the water and is
an indicator of the pool water "balance". Your water is properly balanced if the
Si is 0 ±.2.If the Si is below -0.2, the water is corrosive and plaster pool walls
will be dissolved into the water. If the Si is above +0.2, scaling and staining will
occur. Use the chart below to determine the saturation index.
Si = pH + Ti + Ci + Ai - 12.1
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