How long should I run my pool pump every day? That depends. Typically, you will want to run your pump enough to have a complete turnover of your pool water volume once a day at a minimum. Check the GPH (gallons per hour) for your pump and compare that to the gallons in your pool. You will need to run your pump for the number of hours necessary to turn over the total volume in your pool once every 24 hrs. During the middle of the season, in periods of high heat and sun, or heavy swimmer usage, you will need to increase your filtration time. If your water is cloudy and your chemicals are well balanced then you need to run your pump and filter longer. At the beginning and end of the season, with cooler temperatures, you can run your pump and filter at the minimum time. On average, most pool pumps run a minimum of 8 hrs during every 24 hour period of time.