The main reason to blow out your irrigation system each year before winter is to clear out the water that could linger in the pipes once you shut the system off. With a proper blow out, the pipes will be cleared and dried out, avoiding the potential damage that standing water could cause amid the changing seasonal weather. With a good blow out, there will not be any water in the pipes when your area goes through its winter cold spell. If temperatures drop to the subzero level, you won’t run the