Winterizing a sprinkler entails shutting off the deliver, draining traces
https://kyleriliv329.zenbloomer.com/posts/the-full-overview-to-sprinkler-installment-for-a-lush-lawn
Winterizing a sprinkler contains shutting off the supply, draining strains, and blowing out final water with compressed air to avoid frozen pipes, cracked valves, and highly-priced spring upkeep.