How to Prepare Your Mist Cooling System for Arizona’s Winter

Aug 21, 2025 | Misting Systems

Arizona winters may be mild, but the temperature can still drop low enough to damage unprotected outdoor pipes. The misting system that keeps you cool on summer afternoons doesn’t need to run in December, yet it does require some attention to ready it for cooler weather. Take the time to winterize your misting system this fall to protect pipes, pumps, and nozzles from freezing. A little seasonal home maintenance now will save you from costly repairs come spring.

Shut Down the System Properly

Start by turning off your misting pump. Many systems have a simple switch for this, while others need to be unplugged from the power source. Once off, relieve the water pressure inside the lines. Disconnect the high-pressure side and blow it out with compressed air. This step prevents any residual water from freezing, expanding, and cracking your system’s plumbing.

Remove and Store the Nozzles

Nozzles are delicate, and storing them for the winter extends their life. Unscrew each one from its holder and find a safe storage location. If you notice mineral buildup, soak the nozzles in vinegar to remove limescale before storage. This way, you’ll get a clean, fine mist next season instead of dealing with clogged sprays.

Protect Outdoor Pipes in AZ

Even mild freezes can harm exposed pipes. Wrap or insulate visible plumbing connected to your misting system. For added protection, consider disconnecting exposed sections altogether. This Arizona winter plumbing tip is often overlooked but makes a big difference come spring.

Clean and Empty the Filters

Water filters are designed to trap debris, but they also hold moisture. Disassemble your system’s filter housing, remove the cartridges, and drain out any standing water. Let the filters dry completely before storing them. When you reinstall them next spring, they’ll be fresh and ready to go.

Store the Pump Safely

If your pump sits outside, move it to a frost-free spot. A garage, shed, or storage room works well. Pumps are expensive components, and protecting them ensures smooth performance when temperatures climb again in a few months. For larger setups, professional service may be the best way to handle outdoor system prep for winter.

Simplify Maintenance with Professional Help

While many homeowners can handle the basics, scheduling professional winterization service saves time and guarantees nothing gets missed. Technicians can also check for hidden leaks or worn parts, so you’re not caught off guard when spring arrives.

Prep Your Misting System for Winter with Aqua Science

Aqua Science has helped more than 125,000 Valley homeowners keep their patio misting systems running smoothly since 1985. Our licensed, bonded, and insured team provides custom solutions for your comfort needs, with a 99.98% customer satisfaction rate to prove it. Whether you need to service your misting pump or protect outdoor pipes in AZ, we’ll see to it that your system is ready for winter. Contact us today to schedule mist system shutdown in Phoenix, AZ.