Certified Landscape Irrigation Auditor

What is the desired relationship between sprinkler heads in a well-designed system?

1. They should be placed at least 2 nozzle diameters apart

2. They should overlap to achieve full coverage

3. They should not exceed 3 nozzle diameters apart

4. They should form a circular pattern

The correct answer is: They should overlap to achieve full coverage

The desired relationship between sprinkler heads in a well-designed irrigation system is that they should overlap to achieve full coverage. This overlapping arrangement is essential because it ensures that there are no dry spots in the irrigated area, providing uniform water distribution across the landscape. When sprinkler heads overlap properly, it helps to compensate for variations in water pressure, wind, and evaporation, all of which can affect irrigation effectiveness. By creating a network of overlapping spray patterns, the irrigation system can work more efficiently and effectively, promoting healthy plant growth and conserving water resources. Other arrangements, like maintaining specific distances apart, may lead to gaps in coverage, while a circular pattern may not be the most efficient layout for all landscaping configurations.