Langelier Saturation Index Calculator

Calculate LSI to determine if pool water is corrosive, scaling, or balanced.

Enter the ph level value for this calculation.
Thermal measurement in specified units (°F, °C, or K).
F
Enter the calcium hardness value for this calculation.
ppm
Sum of all values.
ppm
Sum of all values.
ppm

Results

LSI Value:
Calculated lsi value based on your inputs.
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Water Condition:
Calculated water condition based on your inputs.
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Reference: Industry Standards.