Flow & Turnover Calculator
Convert between flow rate and turnover time for your pool volume.
Turnover is arithmetic, not proof of clean water
One mathematical turnover does not prove the water is safe, adequately filtered or adequately sanitized, and it is not a universal runtime prescription. Water mixes rather than passing through in a neat single pass, and sanitizer level, filter condition and circulation dead spots all matter more than the number below.
How this is calculated
- Turnover hours = gallons ÷ (GPM × 60)
- Required GPM = gallons ÷ (hours × 60)