Pool Shock Calculator
Pool shock dosage calculator. Formula: lbs = Pool Volume (gallons) × 0.0002.
Formula
Shock (lbs) = Volume (gal) × 0.0002
20,000 gal pool
Inputs
- Pool Volume: 20000 gallons
- Current Chlorine: 1 ppm
20,000 × 0.0002 = 4 lbs shock
Frequently asked questions
When to shock pool?
When chlorine low or after heavy use/rain