Pool Flow Rate Calculator
Pool water flow rate is an important factor for determining the turnover rate and ensuring the pool water is receiving adequate filtration. Not cycling enough water through the filter can result in swimming pool algae blooms, cloudy pool water, and water balance issues.
Determine the flow rate needed to achieve your desired pool turnover rate.
Filtering pool water is essential for keeping the water clean and safe for swimmers; one filter turnover tends to remove 37% of contaminants. Subsequent turnovers gradually increase the filtration efficiency, with 86% filtration after two turnovers and 98% after four. Many codes require at least four turnovers every 24 hours in commercial pools.
Since different types of water use have varying degrees of contamination, the optimal turnover rate must be adjusted to account for factors such as water volume, activity levels, and contamination load.
The Importance of Knowing Your Pool’s Turnover Rate:
Featured Flow Meters
Commercial use
F-300
Pitot Tube Acrylic Flow Meter
| GPM | LPM |
|---|---|
| 2 - 1900 | 8 - 7200 |
| PSI | Bar |
| 75 | 5.2 |
| Pipe Sizes | |
| 1”, 1¼”, 1½”, 2”, 2½”, 3”, 4”, 6”, 8” | |
Residential use
R-300
FLOWREAD™ Residential Pool Flow Meter
| GPM | LPM |
|---|---|
| 10 - 150 | 37.8 - 567 |
| PSI | Bar |
| 75 | 5.2 |
| Pipe Sizes | |
| 1½”, 2”, 2½” | |
