Which flow rate is typical for overhead irrigation?

• A. 15 - 30 GPH
• B. Variable
• C. 0 - 60 GPH
• D. 1 - 10 GPH

Answer: (B)

The typical flow rate for overhead irrigation is best described as variable because it can change based on several factors, including the type of watering system used, the specific design and setup of the irrigation system, the pressure of the water supply, and the intended coverage area. Overhead systems, such as spray heads or rotors, are designed to disperse water in varying amounts depending on the application and environmental conditions.

For instance, a high-efficiency sprinkler may have a lower flow rate suited for specific landscape needs, while a traditional system may have a higher flow rate. This variability accommodates different landscapes, plant types, and water conservation goals, allowing for flexibility in irrigation management. In contrast, the other options suggest fixed flow rates that wouldn't accurately represent the diversity found in real-world irrigation practices.