How Often Should You Clean Your Pool Filter in Arizona?

Your filter does the quiet, unglamorous work of keeping your water clear. In Arizona's dusty, high-evaporation climate, it works harder than almost anywhere in the country — and it needs attention more often than the manual suggests.

Cartridge filters

Deep-clean every 3–4 months, more often in dust season. A quick hose-off isn't enough; cartridges need a proper soak to remove oils and fine grit.

DE filters

Backwash when pressure rises 8–10 PSI over clean, and do a full tear-down and grid cleaning at least seasonally.

Sand filters

Backwash roughly every few weeks in summer; replace the sand every 3–5 years.

Signs your filter needs service now

• Cloudy water that won't clear with balanced chemistry
• Rising filter pressure
• Weak return jets / poor circulation
• Higher-than-usual pump energy use

Not sure where your pool stands? A filter service includes a full inspection, and our weekly plans keep filters on the right schedule automatically.