How many hours should I run my pool pump each day?

Run your pool pump 8-10 hours daily in summer and 4-6 hours in winter. Summer heat and sunlight turn your pool into an algae farm, so you need enough run time to cycle all the water through the filter at least once. In winter, colder water slows algae growth, and 4-6 hours is usually enough to maintain clarity and prevent freezing. Adjust by an hour or two if your water looks off.