Understanding Pool Pump Run Time
This calculator estimates the daily run time for your pool pump to achieve one (winter) or two (summer) water turnovers, ensuring clean and clear water. It uses pool volume and pump flow rate to calculate the time needed for one turnover, then adjusts based on season.
One turnover filters about 37% of contaminants, with 86% after two turnovers and 98% after four. Most residential pools need 1-2 turnovers daily. Variable speed pumps may run longer at lower speeds for energy efficiency.
Run Time Examples
| Pool Volume (Gallons) | Flow Rate (GPM) | Season | Run Time (Hours) | Scenario |
|---|---|---|---|---|
| 15000 | 40 | Summer | 12.5 | Small pool, high usage |
| 20000 | 50 | Winter | 6.5 | Medium pool, low usage |
| 30000 | 60 | Summer | 16.5 | Large pool, heavy debris |
How to Use the Pool Pump Run Time Calculator
- Enter the pool volume in gallons or liters.
- Enter the pump flow rate in GPM (gallons per minute) or LPM (liters per minute).
- Select the season (Summer: 2 turnovers, Winter: 1 turnover).
- Click "Calculate Pump Run Time" to see the estimated daily run time in hours.
Run Time Comparison
Estimated run times for different pool volumes (40 GPM, Summer).
Frequently Asked Questions
Why is pool pump run time important?
Proper run time ensures all water is filtered, preventing algae and debris buildup. Insufficient run time leads to cloudy water or chemical imbalances.
When should I run my pool pump?
Run during non-peak electricity hours (often overnight) to save costs. Always run after adding chemicals or during high bather load to circulate water effectively.