Answer
Mar 10, 2026 - 02:23 PM
To determine how many gallons per minute (gpm) you need for a 20,000 gallon pool, you should aim to circulate all the water once every 8 hours. Divide 20,000 gallons by 480 minutes (8 hours), which equals about 42 gpm. So, you need a pump that can move approximately 42 gallons per minute for proper circulation.
