The Sprinkler Winter Maintenance Procedure involves several key steps to ensure that the irrigation system is properly prepared for the winter months, preventing damage from freezing temperatures:

1. System Shutdown: The water supply to the sprinkler system is shut off, either at the main valve or at the backflow prevention device.
2. Blowout: Compressed air is used to blow out the remaining water from the sprinkler lines, valves, and sprinkler heads. This step is crucial to prevent water from freezing and causing pipes or components to crack.
3. Backflow Prevention: The backflow prevention device is drained and secured, protecting it from potential frost damage.
4. Component Inspection: Sprinkler heads, rotors, valves, and other components are inspected for wear or damage. Any necessary repairs are noted for spring maintenance.
5. Controller Settings: The irrigation controller is turned off or set to a “rain” or “off” mode to prevent accidental system activation during winter.
6. System Insulation: Exposed pipes and components are insulated to protect against freezing temperatures, especially in areas prone to severe cold.

These steps ensure that the sprinkler system remains in good condition during the winter and is ready for easy reactivation in the spring.