Sprinkler Repair

Mr Sprinkler Repair

How to Adjust Sprinkler Heads for Uniform Water Distribution

Having a well-maintained sprinkler system is vital for a healthy and green lawn. If you’re experiencing issues with your sprinkler spray heads not throwing water over the grass effectively, then it’s time for an adjustment. The goal here is to improve the water distribution across your lawn to ensure that all areas receive adequate moisture. Below, we provide a step-by-step guide on how to adjust the height and angle of your sprinkler heads for optimal performance.

Step 1: Inspect the Sprinkler Heads

Before making any adjustments, thoroughly inspect all sprinkler heads to identify the ones that are too low. Look for heads that are blocked by grass or soil and clear any debris that might be interfering with the water spray.

Step 2: Expose the Sprinkler Heads

Carefully dig around the low-lying sprinkler heads to expose more of the stem. Be sure not to damage any lines or the heads themselves. Remove enough dirt so you can adjust the head freely.

Step 3: Adjust the Height

Most sprinkler heads are mounted on a threaded stem. To raise them, twist the stem counterclockwise slightly to unscrew and elevate the head to the desired height. To lower a head, screw it down by turning clockwise. Adjust to a height where the head is level with the soil or slightly above to ensure adequate clearance.

Step 4: Check the Spray Pattern

Turn on the sprinklers and observe the spray pattern. Adjust the angle or direction of the spray head as needed to cover the lawn uniformly. For fixed spray heads, you may need a screwdriver to adjust the spray distance or change the nozzle for one with a broader range.

Step 5: Adjust the Water Pressure

If the heads are at the correct height but still not covering the area well, you may need to adjust the water pressure. Locate your system’s valve box and slowly turn the flow control valve to increase the pressure until your sprinkler heads achieve the desired coverage.

Step 6: Test the System

Once you’ve made all the adjustments, run the sprinkler system through a full cycle to ensure every part of your lawn is getting sufficient water. Look for any dry spots and make further adjustments if necessary.

Step 7: Return the Soil and Sod

After you’re satisfied with the adjustments, fill back in the exposed soil and replace any removed sod. Tamp the soil lightly to secure the sprinkler in its new position, making sure it’s stable and upright.


Regular maintenance and adjustments of your sprinkler system are key to maintaining a lush lawn. By ensuring that your sprinkler heads are correctly adjusted and at the right height, you can save water and prevent overwatering or underwatering your lawn. If problems persist after manual adjustment, consider seeking the assistance of a professional irrigation technician.

Remember to perform regular checks on your sprinkler system, especially at the start of the watering season and after any landscaping changes, to maintain efficient and effective performance.