What is the recommended sequence for system startup after winterization?

• A. Purge air, energize the controller, inspect for damage, test each zone, check for leaks, adjust patterns.
• B. Inspect for damage, purge air, energize the controller, test each zone, check for leaks, adjust patterns.
• C. Energize the controller, test each zone, check for leaks, adjust patterns, then inspect for damage.
• D. Test each zone, purge air, energize the controller, inspect for damage, check for leaks.

Answer: (B)

Starting up after winterization should follow a safe, methodical sequence: inspect for damage, purge air, energize the controller, test each zone, check for leaks, and adjust patterns. Inspecting first makes sure you’re not powering a system with broken pipes or damaged valves, which could worsen leaks or cause failures. Purging the air removes trapped air from the lines so water flows properly and you can clearly observe operation and identify leaks. Energizing after the lines are cleared allows valves to open under expected pressure without air interference, avoiding erratic spray or water hammer. Testing each zone confirms that heads, patterns, and flow are working correctly before proceeding, and it helps you catch issues early. Checking for leaks after testing ensures any leaks are found while under pressure so you can fix them before relying on full irrigation. Finally, adjusting patterns fine-tunes coverage and efficiency based on real operation.