What does sprinkler system winterization entail? First, the water supply is turned off and then compressed air is used to expel any residual water in the sprinkler lines. Then, all of the system drain valves are opened to free any water still trapped.
The valves above ground and other devices are stopped or insulated to prevent harm during the winter. It’s a delicate process that Interstate has performed for many years. For full-service maintenance for your irrigation system in Arlington, VA, Contact Interstate Irrigation & Lighting!