When water remains in an irrigation system and temperatures fall below freezing, it can turn to ice and expand. The pressure generated within sprinkler pipes and components can cause cracks, leaks, damaged valves, broken fittings, and other problems.
Some freeze damage may not even be noticeable until you turn your sprinkler system back on in the spring.
Winterizing your sprinklers in the fall can help protect:
Underground sprinkler linesSprinkler headsValves and fittingsIrrigation manifoldsBackflow componentsOther water-filled irrigation components
Taking care of your sprinkler system before winter is much easier than discovering a leak or broken line when spring arrives.