The Irrigation Sprinkler Winter Closing Procedure is critical to prevent damage from freezing temperatures. It starts by shutting off the water supply to the irrigation system to stop the flow of water. Next, the blowout method is typically used, where an air compressor forces any remaining water out of the pipes. This ensures there’s no water left that could freeze and cause cracks or other damage to the system. It’s important to carefully remove or insulate exposed components such as sprinkler heads and backflow preventers, which are more vulnerable to freezing. Once the water is cleared and components protected, the irrigation controller should be either deactivated or switched to winter mode. This prevents the system from accidentally activating during the off-season, which could cause significant damage. Proper winterization protects your irrigation system from freezing and ensures it’s fully functional and ready for use when spring arrives.