You can reduce your outdoor water use by 10 percent just by replacing sprayheads with rotary nozzles. This is a simple project because you don’t need to dig out or relocate your sprinklers. All you have to do is unscrew the sprayhead, screw on the rotary nozzle and adjust the nozzle. And, rebates reduce the cost of the nozzles.
Sprayheads have two inefficiencies: they water quickly, which can cause the water to run off the landscape, and they produce mist, which can blow away. Rotary nozzles produce large water drops and apply them slowly, giving the ground time to absorb the water.
When you grip and turn a sprinkler’s riser to point the rotary nozzle in the right direction, you’ll hear and feel a “ratcheting” noise. Don’t worry, this is normal and you’re not breaking the sprinkler.