How To Shut Off Sprinkler System Manually. Yes, a sprinkler head can be turned off with the flow adjustment screw on the nozzle or by removing the head and capping the pipe that feeds it. You need to check the valve of the sprinkler and remove any dirt, debris or foreign objects that may be present.
Slowly turn the water supply back on and verify that the zone is now turning on and off properly both manually and electrically. Carefully take the top of the valve body apart and visually inspect the inside of the valve body. If the valve shuts off, the problem is with the timer.
How do i know if my sprinkler solenoid is bad and how to fix it
If you have multiple sprinklers, it can be helpful to have a main shutoff that can cut all of them off at a moment’s notice. When i tried to turn off the water by closing the bleed screw, the sprinklers continued to run. Turn off main water supply to sprinkler system after identifying the trouble valve. If the valve is clear, check the connection to the water line to make sure it is correct.