8 hours a day is usually enough

Run your pool pump 8 hours a day in summer, less in winter.

Yes, about 8 hours daily in peak season, but it depends on your pool’s size and pump speed. The goal is to circulate the entire volume of water once per day (one turnover). For most residential pools, an 8-hour run at standard pump speed does it.

In cooler months or if you have a variable-speed pump running on low, you might get away with 4–6 hours. But skimping during hot weather? You’ll fight algae and cloudy water. I’d rather run it longer than risk a green pool.

Don’t overthink it. Set a timer, clean the filter, and enjoy swimming.