Why is it useful to perform a flush of the irrigation system at the start of the season?

• A. To ensure clogs are removed
• B. To enhance aesthetic appearance
• C. To adjust the system pressure
• D. To calibrate the emitters

Answer: (A)

Performing a flush of the irrigation system at the start of the season is beneficial primarily because it ensures that any clogs are removed. Over time, sediment, debris, and mineral deposits can accumulate in the irrigation lines and emitters. Flushing the system helps to clear out these blockages, which can impede water flow and reduce the system's efficiency. A clean irrigation system allows for even water distribution, promoting healthy plant growth and maximizing the effectiveness of water usage.

While enhancing aesthetic appearance, adjusting system pressure, and calibrating emitters are important aspects of irrigation management, they do not directly address the immediate need to remove clogs and ensure proper functionality at the beginning of the season. Therefore, the flush serves as a crucial maintenance step to prepare the system for optimal operation.