Find out how long it takes to circulate your entire pool volume
GPM
Need help finding your flow rate? Pool Flow Rate Calculator
Please enter a valid pump flow rate in GPM.
Estimated Turnover Time
— h — m
Pool Turnover Rate Quick Reference Chart
Most residential pools require a full turnover every 8 hours. Move the slider below to see how your pool volume matches standard pump flows.
| Pool Size (Gal) | Pump Flow (GPM) | Target Turnover Time |
|---|---|---|
| 5,000 Gallons | 15 GPM | 5 h 33 m |
| 10,000 Gallons | 25 GPM | 6 h 40 m |
| 15,000 Gallons | 35 GPM | 7 h 9 m |
| 20,000 Gallons | 45 GPM | 7 h 24 m |
| 25,000 Gallons | 55 GPM | 7 h 35 m |
| 30,000 Gallons | 65 GPM | 7 h 42 m |
| 40,000 Gallons | 85 GPM | 7 h 51 m |
Recommended Flow Rates by Pipe Size
Standard PVC schedule 40 pool plumbing
Min Flow (GPM)
Max Flow (GPM)
Optimal (6–8 ft/s)
💡 Based on standard industry guidelines for PVC pool plumbing.