It is recommended to blow out your sprinklers to winterize your irrigation system. Forcing air through the valves, pipes, and sprinkler heads will completely rid the system of water. A professional knows how much volume and pressure to use when blowing out sprinklers, as many do-it-yourselfers typically use an insufficient volume of air and after having forced some water out, the air will ride over the top of the remaining water. This results in the remaining water draining into low spots and subjecting the system to freeze damage.
It is highly recommended that you contact a licensed contractor when doing a sprinkler blowout. Extreme care must always be taken because compressed air can cause serious injury, including serious eye injury, from flying debris. Sprinklers Pros is glad to provide this service for you so you can stay safe and be sure it’s done properly.