No need to run your pool pump 24/7 during a heatwave.

No.

Heatwaves spike evaporation and algae growth, but running the pump nonstop is overkill. The pump’s job is to turn over the full pool volume once or twice a day—most pools only need 8–12 hours of runtime for that. During a heatwave, bump it to 12–14 hours, ideally during the cooler night or early morning hours when the pump doesn’t add heat to the water.

24/7 just wastes electricity and wears out your pump faster. If you’re worried about stagnation, check your skimmer and clean the filter—that does more than an extra eight hours of circulation.

Your electric bill will thank you.