What is a key benefit of using an irrigation controller with solenoid valves?

• A. Manual operation required for each zone
• B. Automatically shuts off all zones at once
• C. Zones can be programmed individually
• D. Only one zone can be controlled at a time

Answer: (C)

Independent zone control is the benefit. An irrigation controller with solenoid valves lets each zone be opened and closed on its own schedule, so you can program different runtimes, start times, and watering days for different areas. This lets you tailor watering to soil type, sun exposure, and plant needs, and you can run multiple zones together or on separate schedules as required. Without a controller, manual operation would be needed for each zone, and the ideas of shutting all zones at once or only controlling one zone at a time don’t reflect how a system with individual solenoid valves is designed to operate.