Winterizing a sprinkler involves shutting off the grant, draining lines

https://martinhihk760.nexorafield.com/posts/prolonging-system-life-advanced-sprinkler-maintenance-finest-practices

Winterizing a sprinkler contains shutting off the supply, draining strains, and blowing out ultimate water with compressed air to preclude frozen pipes, cracked valves, and high priced spring maintenance.