Pool Shock Calculator

How much 12.5% liquid chlorine to add based on water condition.

2,000 gal pool 12.5% shock

Treatment type

Routine Shock Raise FC to 10 ppm Cloudy Water Raise FC to 12 ppm Light Green Raise FC to 20 ppm Dark Green Raise FC to 30 ppm

Total Chlorine

3.0ppm

010 ppm

Free Chlorine

2.0ppm

010 ppm

Add this much shock

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Dose raises free chlorine from your current reading to the selected treatment target. Formula for 12.5% liquid chlorine in a 2,000 gallon pool.