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Uniformity Comparison of Common Residential Irrigation Sprinkler Heads

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan

Citation:  Paper number  032024,  2003 ASAE Annual Meeting . (doi: 10.13031/2013.15649) @2003
Authors:   Melissa C. Baum, Michael D. Dukes, Grady L. Miller
Keywords:   residential irrigation, water use, landscape, turf, distribution uniformity, DU

Due to droughts, irrigation has become a necessity for residential homeowners desiring high quality landscapes in Florida. In an efficient system a number of components must be considered; design, scheduling, and equipment. Catch-can tests of the system are an accepted method of determining the uniformity of the irrigation distribution, which can be related to efficiency. The DUlq values of the spray and rotor zones of residential irrigation tests in Central Florida were 0.40 and 0.48 respectively. Brand and pressure effects on uniformity of spray and rotor heads were found to be significant. From uniformity tests performed on spray and rotor heads under ideal conditions, the rotor heads had the most uniform distributions, 0.55, regardless of pressure variation. The spray heads had the better uniformity when fixed quarter circle nozzles were used as opposed to adjustable nozzles, with average DUlq values of 0.52 and 0.44 respectively.

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