How to Adjust Nelson Sprinkler Heads
When set to their default setting, Nelson brand sprinklers water in a full circle. Adjusting the sprinkler heads, on the other hand, helps save water by keeping it away from areas that don't require it, such as driveways. Adjusting the water spray direction is straightforward and quick thanks to a unique disk inside each sprinkler head.
Preparing the sprinkler heads
Nelson sprinkler heads are often used in home landscapes, and they lie flat with the ground when not in use and pop up when the sprinkler system is triggered. Because modifications must be made when the device is turned off, each sprinkler head must be propped up while you work on it. Pull the cover of a sprinkler head upward to raise it until you notice a small indentation that goes all the way around the device. Wrap a clamp around the indentation, which should have come with the sprinkler system. To keep the sprinkler head propped open, the clamp's pull tab extends outside the housing.
Making the adjustment
With its Pro series, Nelson offers two cap styles; caps of one form can be twisted off, while caps of the other style must be peeled off with a special tool. Remove the cap from each sprinkler head by twisting it counterclockwise. If the caps would not turn, use the Nelson sprinkler adjustment tool, which came with the sprinkler system and is available from most landscape supply stores. Place the notched edge of the tool beneath the lip of a cap and pry it upward. If you want to change the spray pattern from a full circle to a partial circle, remove the sprinkler head's cap and pull out the black, click-set disk in the middle of the sprinkler head. Flip the disk to the gray side and press it back into position in the sprinkler head. This job allows the adjustable collars to move. Adjust the collars to direct the rotation of the sprinkler head. If a full circular spray pattern is desired, simply leave the black, click-set disk in place and make no modifications.
Changing the Nozzles
The arc of the water emitted is an important component in sprinkler arrangements. The far edge of one sprinkler head's water spray should overlap the water sprays of nearby sprinkler heads. A low water arc delivers the spray a shorter distance, whereas a high arc sends the spray a longer distance. Adjust the water arc of a sprinkler head by replacing the nozzle with one that offers the required angle. Remove the nozzle by removing the nozzle holding screw from the side of the sprinkler head. Replace the retaining screw after inserting the new nozzle.
Testing the sprinkler heads
Checking the operation of the sprinkler heads after making adjustments may lead you to fine-tune those adjustments. After removing the clamp and allowing the sprinkler head to descend into its housing, replace the head's cover and slowly turn on the water to allow air to escape the water line. If the rotation or water arc of the sprinkler head isn't proper, turn off the water and repeat the adjustment and testing stages until the sprinkler head sprays appropriately. If the spray is excessively powerful, turn the screw slightly above the nozzle to dilute it. The cap is often removed to gain access to the diffuser screw, which can be twisted using the Nelson sprinkler adjustment tool.
The Drip Cap
- Nelson brand sprinklers, when set to their default setting, water in a full circle.
- Each sprinkler head contains a proprietary disk that makes altering the water spray direction simple and quick.
- Nelson sprinkler heads are often used in home landscapes, and they lie flat with the ground when not in use and pop up when the sprinkler system is triggered.
- Remove the nozzle by removing the nozzle holding screw from the side of the sprinkler head.
- Checking the operation of the sprinkler heads after making modifications may lead you to fine-tune such adjustments.
- After removing the clamp and allowing the sprinkler head to descend into its housing, replace the head's cover and slowly turn on the water to allow air to escape the water line.
