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Pool Shock Calculator

Calculate the precise pool shock dosage.

Calculate Shock Plan
ppm
ppm

How to Use

  1. Enter your pool volume and select gallons or liters
  2. Add the current and target free chlorine levels
  3. Pick the shock product you plan to use
  4. Click calculate to get dosage, wait time, and cost

When to Shock Your Pool

Shock the pool after heavy usage, storms, algae blooms, or whenever free chlorine drops below safe levels. Routine weekly shocking keeps contaminants and chloramines under control.

Frequently Asked Questions

How long should I wait to swim after shocking?
Most products require waiting at least 8 hours or until free chlorine is below 5 ppm. Always retest the water before anyone swims.

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