Certified Landscape Irrigation Auditor

What radius do fixed spray heads typically have?

1. 1 - 5 feet

2. 3 - 15 feet

3. 10 - 20 feet

4. 15 - 30 feet

The correct answer is: 3 - 15 feet

Fixed spray heads generally have a radius of 3 to 15 feet, making this option accurate for standard irrigation systems. These spray heads are designed to cover smaller areas with a uniform application of water, allowing for effective irrigation of flower beds, shrub areas, and small lawns. The range of 3 to 15 feet strikes a balance between being compact enough for tight spaces while still being sufficient to cover moderately sized areas. Other options suggest ranges that are either too narrow or too wide for typical fixed spray head operations. For instance, a radius of 1 to 5 feet may be too limited for effective coverage, while the 10 to 20 feet and 15 to 30 feet ranges are generally associated with rotating or more extensive sprinkler systems suited for larger landscapes rather than fixed spray heads. This understanding of the proper application and coverage helps landscape irrigation auditors assess whether the installed equipment meets the needs of a particular area.