PooloraSaltwater pool salt calculator
Calculate salt to add in kilograms and pounds using pool volume, measured salinity, salt purity and the target from your chlorine generator.
Find the target salinity in your chlorine generator manual. Measure the current water salinity instead of assuming that a newly filled pool contains no salt.
How the calculation works
Salt mass in grams = increase in ppm × liters ÷ 1,000 ÷ purity fraction. The result estimates the added salt mass; it does not calibrate a generator sensor.
Worked example
A 15,000-gallon pool going from 2,400 to 3,200 ppm needs about 100.1 lb (1,602 oz · 45.4 kg) of 100% salt, about two and a half 40-lb bags. In metric, 50,000 L from 2,800 to 3,200 ppm needs 20 kg. Confirm that 3,200 ppm is suitable for your specific equipment.
Before using the result
Use pool salt suitable for the generator. Follow its instructions for circulation and restarting the cell after the salt has dissolved. Adding salt cannot correct excessive salinity.
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