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Sprinklers Failing to Rotate Properly on a New System - Toro
Tags:
Troubleshooting, Rotors, Sprinklers, Toro, Maintaining
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SingleStreams are designed to operate at 25-75 psi. The nozzle controls the amount of water flowing through the head. The smaller the pattern, the lower the flow rate. The lower the flow rate the more sensitive the sprinkler head is to having the proper pressure. A full circle head may work at low psi but as you reduce the pattern size you will more likely experience problems.
- Remove one of the heads that does not rotate and replace it with a pipe coming up 12 inches or more.
- On top of the pipe install a fitting with one port pointing up and one to the side.
- Reinstall the same head you removed on top of the tee and install a pressure gauge on the side.
- Run the zone and observe the pressure.
- If the pressure is less than 25 psi, the problem is not the head. Other possibilities could be a crushed pipe or other flow restriction.
- If the valves have flow control, make sure its open all the way.
- You maybe able to use a smaller nozzle, which will raise the pressure.
- Longer run time will be needed to compensate for reduced GPM (gallons per minute).
MultiStreams are designed to operate at 30-50 psi. The pattern disc controls the pattern and restricts the amount of water flowing through the head. The smaller the pattern, the lower the flow rate. The lower the flow rate the more sensitive the head is to having the proper pressure. A full circle head may work at less than 30 psi but as you reduce the pattern size you will more likely experience problems Check the pressure at the head to determine what is causing the problem.
- Remove one of the heads that does not rotate and replace it with a pipe coming up 12 inches/30.48 centimeters or more.
- On top of the pipe install a tee fitting with one port pointing up and one to the side.
- Reinstall the same head you removed on top of the tee and install a pressure gauge on the side.
- Run the zone and observe the pressure.
- If the pressure is less than 30 psi, the problem is not the head. Other possibilities could be a crushed pipe or other flow restriction.
- If the pressure is greater than 30 psi, replace the head.
Provided by Toro
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