Rotary Nozzles

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

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

Rotary Nozzle Watering Times

Rotary 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. The watering times have been reduced from Denver Water’s standard recommended times because of the Stage 2 drought declaration.

	Minutes to water per zone (for lawns, based on two days per week)
	Fixed spray heads	Rotor heads	Rotary nozzles	Manual sprinklers
May	15	31	35	23
June	17	38	44	26
July	19	42	48	29
August	15	33	39	24
September	12	25	29	17

Remember, you can’t water between 10 a.m. and 6 p.m. In addition, between April 1 and Sept. 30, you may only water two days a week and must follow this schedule: