Impact sprinklers uniformly distribute water to lawns and gardens in an adjustable arc pattern. The arc pattern can typically be adjusted from 40 to 360 degrees.
The arc pattern on impact sprinklers mimics rainfall patterns, which allows for a more uniform distribution of water. Impact sprinklers are a simple design that are ideal for areas with hard water, as the heads do not get impacted by calcium deposits as easily. Models vary, but many impact sprinkler heads are able to reach a spray radius of 20 to 150 feet and can produce between 0.1 and 1.5 inches per hour. Impact sprinklers require regular maintenance, and they are typically made of metal rather than plastic.