How To Turn Off Sprinkler System Valve. Now, the sprinkler valve should shut off without any trouble. Grasp the body of the solenoid firmly and turn it counterclockwise at least a quarter turn.
This will cancel any of the scheduled sprinkler times and kill the whole system so that you can inspect it safely. A globe valve has a round handle. Here are some of the most common reasons that a sprinkler system won’t turn on, along with how to address the issue:
How to tell if a valve is open.
Carefully take the top of the valve body apart and visually inspect the inside of the valve body. Grasp the body of the solenoid firmly and turn it counterclockwise at least a quarter turn. This is the first place to look for sprinkler issues. Turn the valve key counterclockwise to turn off the valve.