Rotary/high-efficiency nozzles fit on most popup spray heads. Instead of a fixed stream of water, rotary/high-efficiency nozzles slowly deliver multiple rotating streams of water, reducing water waste. Because the water is applied more slowly, more water is able to soak into the soil.

Rotary/High-Efficiency Nozzle Benefits

• Reduced runoff on slopes and clay soils.
• Easy-to-install retrofits for pop-up irrigation heads.
• Increased radius range.
• Considerably less water flow per minute than conventional spray nozzles, reducing water use.
• Better coverage.

Irrigation Problem	Rotary/High-Efficiency Nozzle Solution
	Rotary/high-efficiency nozzles distribute less precipitation, reducing runoff.
	Rotary/high-efficiency nozzles distribute a wider stream of water, resulting in less drift from the wind.
	Rotary/high-efficiency nozzles provide better coverage, which can help eliminate brown spots.
	Rotary/high-efficiency nozzles have a stronger stream of water, which is able to reach taller plants.

Rotary/High-Efficiency Nozzle Watering Times

Rotary/high-efficiency nozzles use less water than fixed spray heads, but they require longer watering times.

• Use the chart to determine the number of minutes to water each zone on the days you water. Remember, watering is not allowed between 10 a.m. and 6 p.m.

Minutes to water per zone (For bluegrass, based on sprinkler type.)
Watering Months	Rotary/high-efficiency nozzles	Fixed spray heads	Rotor heads		Manual sprinklers
May	30	12	24		18
June	43	17	35		26
July	45	18	36		27
August	34	14	27		20
September	28	11	23		17