How To Turn Off Irrigation System For Winter. This shuts down your main water source ensuring that no more water will be headed through there until you turn it back on next spring. Warm season grasses grow best at temperatures 90 to 95 °f.
Find the main water valve to the irrigation system and turn it off. If you have a brass or pvc ball valve, gently turn the valve handle 90 degrees to open or close it. Cool season grasses thrive when temperatures are 65 to 75 °f.
Turn system off cycle in the application (smart device, pc, or mac), you can turn off your automatic cycle or turn off a single zone running manually by using.
Turn the water supply back on and flush out the valve for at least fifteen seconds. Drain all of the irrigation components that are above ground and may hold water. Adjust all ball valves and backflow test cocks to a 45 degree angle. In this way, you will be able to flush out the remaining air and can examine.