
How does impulse sprinkler work? An impact sprinkler (sometimes called an impulse sprinkler) is a type of irrigation sprinkler in which the sprinkler head, driven in a circular motion by the force of the outgoing water, pivots on a bearing on top of its threaded attachment nut. Invented in 1933 by Orton Englehart, it quickly found widespread use.
Full Answer
What is an impulse sprinkler?
Impact sprinkler. An Impact Sprinkler (sometimes called an impulse sprinkler) is a type of irrigation sprinkler in which the sprinkler head, driven in a circular motion by the force of the outgoing water, pivots on a bearing on top of its threaded attachment nut. Invented in 1933 by Orton Englehart, it quickly found widespread use.
How do impact sprinklers work?
The impact sprinkler's long spray radius and uniform water distribution re-creates the effect of natural rainfall, and the device quickly replaced the centuries-old technique of furrow irrigation, in which trenches were dug between rows of crops and flooded.
How do you increase the power of a sprinkler system?
Opening the faucet to increase the water flow will increase the power and coverage of the stream, while decreasing the flow will confine the sprinkler coverage to a smaller area. Use a lower water flow when you want to avoid damaging delicate plants, like flowers and leafy shrubs, with a forceful blast.
How do you rotate a sprinkler all the way around?
If you want the sprinkler to rotate all the way around, simply lift the trip pin until it rests up against the sprinkler head. It will then be able to send out water in a smooth, radial motion. Getting the trip pin out of the way can be helpful if your sprinkler system is located in the center of the area you’re watering.

How does an impulse sprinkler head work?
An impact sprinkler (sometimes called an impulse sprinkler) is a type of irrigation sprinkler in which the sprinkler head, driven in a circular motion by the force of the outgoing water, pivots on a bearing on top of its threaded attachment nut. Invented in 1933 by Orton Englehart, it quickly found widespread use.
How do you use Impulse sprinklers?
0:521:37How To Adjust An Impact Sprinkler - YouTubeYouTubeStart of suggested clipEnd of suggested clipThe trip pin and friction collars determine the spray pattern. Adjust the friction collars to createMoreThe trip pin and friction collars determine the spray pattern. Adjust the friction collars to create watering patterns flip the trip pin up to create a full 360-degree.
How much water does an impulse sprinkler use?
Maxi-Bird 1/2" Impulse Sprinkler This is a great general use sprinkler that provides excellent coverage in a variety of residential lawn or garden applications. Includes a nozzle set that will accommodate a flow range of 1.5 to 8.4 gallons per minute and coverages up to 88 feet in diameter.
How do I fix my impulse sprinkler?
3:026:07Impact Sprinkler: How to Troubleshoot - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo if your sprinkler doesn't reverse or doesn't act like it's working correctly check that spring inMoreSo if your sprinkler doesn't reverse or doesn't act like it's working correctly check that spring in that location of that hook. And correct it if you have high pressure it's recommended that you use.
How do you adjust an orbit impulse sprinkler?
0:142:20Adjust Orbit metal impact sprinkler - YouTubeYouTubeStart of suggested clipEnd of suggested clipYou adjust those by kind of pinching them in and then rotating them and that will set your arcMoreYou adjust those by kind of pinching them in and then rotating them and that will set your arc there's a trip pin here on back that will hit each side trip in this pan.
Why is my sprinkler not rotating?
The most common reason for a sprinkler to stop rotating is the accumulation of debris in the filter. This video will teach you how to clean the filter on your rotors. Hunter rotary sprinklers operate on a “gear drive” system.
What type of sprinkler is most efficient?
Rotating sprinklers are the best type of sprinkler for a large lawn due to their even distribution and ability to work quickly.
How long does it take to water lawn 1 inch?
To determine how long you need to water to get one inch, place a plastic container in your yard and set a timer. On average, it will take 30 minutes to get a half inch of water. So, 20 minutes, three times per week will give a lawn about an inch of water.
How long should you run a sprinkler on your lawn?
A watering session should be long enough to soak the area sufficiently so all the roots receive a beneficial drink. Sprinklers should be set to run for about 30 to 35 minutes at a time twice a week. Your goal is at least 1″ of water a week for your lawn.
Why does my sprinkler keep getting stuck?
Debris. The most common cause of a stuck sprinkler head is dirt and debris. If dirt, rocks, leaves, or grass gets caught between a sprinkler body and the sprinkler riser, it can clog up the works and stop the riser from sliding back into the body. Resulting in a sprinkler head that won't go down.
Why is my tripod sprinkler not rotating?
Orbit rotating sprinkler heads are driven by water pressure, and if the pressure is too low, the sprinkler won't rotate. It's pretty easy to tell if you have low pressure in the zone because all the sprinkler heads will exhibit the same behavior, and if they do, you can probably trace the problem to the zone valve.
Why does my pulsating sprinkler get stuck?
Water pressure that is either too low or too high can cause sprinkler head jamming. When water pressure dips below acceptable limits, the sprinkler head may get stuck at one side of its arc or it may not move at all. If water pressure is too high, it may also cause the sprinkler to stop or jam.
What is an impact sprinkler?
An Impact Sprinkler (sometimes called an impulse sprinkler) is a type of irrigation sprinkler in which the sprinkler head, driven in a circular motion by the force of the outgoing water, pivots on a bearing on top of its threaded attachment nut.
How long should I leave my sprinkler on?
Usually it's about 30 minutes.
How does an impact sprinkler work?
Impact sprinkler heads sit on a rotating bearing, which allows them to pivot as water flows through them for full 360 degree coverage. If you want to tweak your impact sprinkler system to change the pressure, spray pattern, or arc of the water, there are several ways you can go about it. The simplest solution is to control the flow ...
What happens when a sprinkler turns?
As the sprinkler turns, the wiry metal piece at the base of the head, known as the trip pin, will run up against the collar clamps, causing the sprinkler to reverse direction. Make sure the trip pin stays within the range you want to set for the sprinkler.
How to change the spray pattern on a sprinkler head?
Use the friction collars to alter the spray pattern. Twist the metal clamps that wind around the base of the sprinkler head into different positions to determine the movement of the sprinkler head . The closer together the collars are, the narrower the watering range.
How to decrease the distance of a sprinkler?
If you want to decrease the distance that your sprinkler covers, screw the pin in a clockwise direction until it sits over the water nozzle. For a more concentrated stream that will go further, unscrew the pin all the way or remove it entirely.
How to stop a sprinkler from moving?
Gently scrub each piece with hot water and a bottle brush to remove any debris or mineral buildup that may be inhibiting the sprinkler’s movement. Common symptoms of a dirty sprinkler include a weak stream with normal water pressure, turning to one side and stopping, and failing to rotate at all.
What is the best material for a sprinkler head?
Choose the right sprinkler head. Impact sprinkler heads are usually sold in a couple different materials—plastic and metal. Plastic heads are lightweight, making them easier to turn with a conservative water flow of around 20-40 psi.
How to change water flow in impact sprinkler?
The simplest way to change the amount of water coming out of your impact sprinkler is to tighten (clockwise) or loosen (counterclockwise) the hose faucet where it’s hooked up. Opening the faucet to increase the water flow will increase the power and coverage of the stream, while decreasing the flow will confine the sprinkler coverage ...

Overview
An impact sprinkler (sometimes called an impulse sprinkler) is a type of irrigation sprinkler in which the sprinkler head, driven in a circular motion by the force of the outgoing water, pivots on a bearing on top of its threaded attachment nut. Invented in 1933 by Orton Englehart, it quickly found widespread use. Though it has in many situations been replaced by gear-driven "rotor heads", m…
Development
The original horizontal action impact drive sprinkler was invented in 1933 and patented in 1935 by a Glendora, California citrus grower, Orton Englehart. He later sold it to Clem and Mary La Fetra who manufactured and marketed it under the brand name Rain Bird.
Design and operation
The sprinkler head pivots on a bearing on top of its threaded attachment nut. The head is driven in a circular motion by the force of the outgoing water, and at least one arm extends from the head. The sprinkler arm is repeatedly pushed back into the water stream by a spring. The arm's striking the water stream scatters the stream and re-orients the flow slightly, enabling a uniform watering area around the sprinkler.
Usage
The impact sprinkler's long spray radius and uniform water distribution re-creates the effect of natural rainfall. The device provides an above-ground alternative to furrow irrigation, in which trenches are dug between rows of crops and flooded.
Variations
An underground pop-up version of the impact sprinkler was introduced as a way to avoid the problem of having to carefully and time consumingly mow around overground sprinkler heads. When not in operation, these sprinklers disappear out of sight below turf level. Although these variants provide regular convenience, malfunctioning sprinkler heads that fail to recede may become damaged by an unobservant landscaper mowing over them.
External links
• Impact sprinkler in slow motion (video clip, 33 sec)
• Howser, Huell (November 8, 2010). "Rain Bird – California's Gold (12002)". California's Gold. Chapman University Huell Howser Archive.