Winterizing a sprinkler includes shutting off the deliver, draining lines

https://arthurksdc006.lumenforgex.com/posts/lengthening-system-life-advanced-sprinkler-maintenance-finest-practices

Winterizing a sprinkler includes shutting off the grant, draining strains, and blowing out final water with compressed air to stay away from frozen pipes, cracked valves, and costly spring upkeep.