The Irrigation Association

SWAT opens high uniformity spray head sprinkler nozzle testing protocol version 2.0 for public comment


Source: The Irrigation Association

FALLS CHURCH, VA. -- Version 2.0 of the Smart Water Application Technologies committee’s equipment functionality testing protocol for high uniformity spray head sprinkler nozzles is open for public comment through Sept. 25.

This revised protocol incorporates feedback submitted during the public comment period for the first version. Industry stakeholders can review and submit comments to the latest protocol by clicking here.

“Version 2.0 looks at how individual nozzles that fit into a spray head body perform compared to manufacturer-published information and how groups of nozzles with different arcs work together in defined areas to resemble use in real world applications,” said Brent Mecham, the Irrigation Association’s industry development director and SWAT liaison. “The testing protocol results will provide useful information for improving irrigation efficiency.”

High uniformity spray head sprinkler nozzles are designed to improve irrigation system efficiency by evenly applying water in a specified pattern and volume. For this protocol, in addition to testing nozzles individually, two test areas are defined to test groups of nozzles working together: a square area and a circular area. The test protocol measures how evenly the water is applied in each of the defined areas. Version 2.0 also tests and evaluates how these nozzles perform at the preferred operating pressure and at different operating pressures commonly found in landscape settings.

For more information about SWATand IA’s other standard initiatives, visit or contact Brent Mecham, CAIS, CGIA, CIC, CID, CLIA, CLWM, at 703.536.7080 or

About the Irrigation Association

The Irrigation Association is the leading membership organization for irrigation companies and professionals. Together with our members, we are committed to promoting efficient irrigation and to long-term sustainability of water resources for future generations. IA works to improve industry proficiency, advocate sound water management, and grow demand for water-efficient products and services. For more information, visit

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