Winterizing a sprinkler consists of shutting off the deliver, draining lines
https://arthurksdc006.lumenforgex.com/posts/how-frequently-should-you-set-up-lawn-sprinkler-maintenance
Winterizing a sprinkler involves shutting off the source, draining lines, and blowing out last water with compressed air to keep away from frozen pipes, cracked valves, and high-priced spring upkeep.