Which parameter is NOT typically included in the programming of a conventional irrigation controller?

• A. Water Days
• B. Water Efficiency
• C. Start Time
• D. Run Time

Answer: (B)

Water efficiency is not typically a parameter included in the programming of a conventional irrigation controller. These controllers are generally designed with specific settings that focus on direct operational aspects, such as scheduling and timing of irrigation events, which are crucial for basic functioning.

Parameters like watering days, start times, and run times are essential for determining when and how long irrigation should take place, ensuring plants receive appropriate water based on predetermined schedules.

While water efficiency is a key concept in modern landscaping and irrigation management, promoting the reduction of water waste and optimizing usage, it is not a programmable setting within the mechanics of conventional irrigation controllers. Instead, water efficiency is often addressed through overall planning and management strategies rather than individual controller settings. Thus, the correct answer highlights a distinction between operational parameters and broader efficiency goals in landscape irrigation.