This is generally because of a ruptured or torn diaphragm in one or more of the control valves. Be sure that the valve is not installed backwards. Make sure the solenoid plunger is not stuck or missing. Remove the solenoid and check for debris or a missing plunger. If everything looks functional, remove the cover assembly and check the diaphragm and lower valve body diaphragm seat for chips, fractures, or debris. If the diaphragm is torn, ruptured, or has a tiny pin hole, replace it. If there is a chip or fracture in the lower valve body, replace the valve. For additional help, refer to the troubleshooting section of the specific valve model number.

To Increase the Arc Insert the plastic end of the Orbit key into the pattern adjustment socket. While holding the nozzle turret at the right stop, turn the key clockwise. Each full turn of the key increase the arc 90 degrees. Adjust to any arc between 40 & 360 degrees. When the maximum arc (360) is reach, the key will stop turning or there will be a ratcheting noise. To Decrease the Arc Insert the plastic end of the Orbit key into the pattern adjustment socket. While holding the nozzle turret at the right stop, turn the key counterclockwise. Each full turn of the key decreases the arc 90 degrees. Adjust to any arc between 40 and 360 degrees. When the minimum arc (40) is reached, the key will stop turning or there will be a ratcheting noise.

For medium sized areas of your property, we recommend that you use four inch pop-up heads to ensure that the heads clear the top of your grass when in the "up" position. For large areas of your property, we recommend the large gear drive heads since they are more efficient and easier to use. For shrubs and flowerbeds, we recommend the mushroom bubbler because it requires less water flow to run.

Click here to view a helpful tracking and scheduling worksheet.