Which of the following best describes the programming steps for a conventional irrigation controller?

• A. Set Time, Set Water Days, Set Rain Delay, Set Flow Rate
• B. Set Start Times, Set Run Times, Set Seasonal Adjustment, Set Water Days
• C. Set Start Time, Set Rain Delay, Set Water Days, Set Duration
• D. Set Duration, Set Zones, Set Flow Rate, Set Start Times

Answer: (B)

The best description of the programming steps for a conventional irrigation controller is setting Start Times, Run Times, Seasonal Adjustment, and Water Days.

Setting Start Times involves determining when each zone of the irrigation system will begin to operate, which is crucial for ensuring optimal watering times based on weather conditions and plant needs. Run Times specify how long each zone will water, allowing for targeted and efficient water delivery. Seasonal Adjustment is an important feature that adjusts the watering schedule based on seasonal changes, helping to conserve water during periods of higher rainfall or by reducing irrigation during cooler months. Setting Water Days accounts for specific days that irrigation may take place, further customizing the watering schedule to align with the landscape's requirements.

While the other choices mention relevant aspects of irrigation management, they either mix elements inappropriately or miss key steps like the Seasonal Adjustment, which is critical for efficient water use throughout varying times of the year.