Rotary/High-Efficiency Nozzles

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
Hillisde irrigation problem Rotary/high-efficiency nozzles distribute less precipitation, reducing runoff.
Windy area irrigation problem Rotary/high-efficiency nozzles distribute a wider stream of water, resulting in less drift from the wind.
Brown spot irrigation problem Rotary/high-efficiency nozzles provide better coverage, which can help eliminate brown spots.
Tall plant irrigation problem 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.
Watering
Months
Minutes to water per zone (for lawns, based on three days per week)

Rotary/high-efficiency nozzle
Rotary/high-efficiency nozzles

Fixed spray head
Fixed spray heads

Rotor head
Rotor heads

Manual sprinkler
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

More Information

Denver Water offers a $3 rebate per rotary/high-efficiency nozzle, with a minimum purchase of 10 nozzles, on these eligible models.

See more lawn watering tips.