Variable-arc nozzle (VANs) or adjustable nozzle restriction
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Background
Variable-arc nozzles (VANs) are adjustable spray nozzles that allow application in a range of arc. While this enables in-field adaptability, VANs do not typically apply water as uniformly as standard fixed-spray nozzles, especially over time.
Requirements and certification
VANs are only used to irrigate unevenly shaped turf grass areas that cannot be effectively irrigated with fixed-spray nozzles.
| Silver | Gold | Commercial/Institutional |
|---|---|---|
| NA | NA | Required |
Limit VANs use to those landscaped areas that cannot be effectively irrigated by fixed-spray nozzles. The following illustration shows an example of how VANs might be the best solution to effectively apply water to a turf grass area. Ideally, the landscape design should limit such situations.
Program tip
Early coordination of landscape and irrigation designs can reduce the need for VANs, by limiting the number of oddly shaped areas that cannot be effectively irrigated by fixed-spray nozzles. This Florida Water Star requirement can be met through thoughtful landscape design.
