Desert Pool Care: Arizona Tips by Season

National how-to sites don’t account for desert conditions. This advice is built for intense sun, hard water and monsoon storms.

Arizona pool care tips

Heat and sun: Water above 85°F burns through chlorine fast. Keep stabilizer (CYA) in range and add chlorine in the evening.
Evaporation: Expect to lose up to about 1/4 inch a day in peak summer. Top off regularly so the skimmer never sucks air; an auto-fill valve helps.
Hard water: Fill water is often high in calcium, so scale is the #1 surface issue. Keep pH at the low end (7.4) and alkalinity near 80–90 ppm in summer.
Rising TDS and CYA: Water evaporates but minerals stay behind, so many desert pools need a partial drain every 2–3 years. Drain only in cooler months to avoid plaster damage.
Monsoon and dust storms: Empty the baskets right after the storm, run the pump longer, shock, and brush. Turn off equipment during lightning.
Pump run times: Run 8–12 hours a day in summer; use off-peak hours with a variable-speed pump to save on utility bills.
Winter: Water rarely freezes in the Valley, but on frost nights run the pump overnight (or use freeze protection) to protect your plumbing.

Seasonal pool care

In a year-round climate your pool never fully closes. It shifts between a summer and a winter routine.

Spring (March–May): Run the pump 6–8 hours a day. Do a full balance and raise CYA before summer. Clean the filter, inspect equipment, and check the salt cell.
Summer (June–September): Run the pump 8–12 hours a day. Focus on chlorine demand and scale control. Shock weekly, top off water, and clean up after monsoon storms.
Fall (October–November): Run the pump 6–8 hours a day. Rebalance after storms. Remove leaves, clean the filter, and consider a drain and refill.
Winter (December–February): Run the pump 4–6 hours a day. Chlorine demand drops. Use freeze protection on cold nights and check the heater.

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