Start by turning off the water supply to the sprinkler system. The shut-off valve should be on the home's side of the backflow preventer. It's common for the valve to be in a box just under the ...

Turn off your sprinkler system at the controller. 2. Drain the system to remove standing water from the pipes. Most systems have a drain valve or require manual draining. 3. Cover any above-ground ...

Starting with your sprinkler system, Woodard says to completely shut it off and drain all the water from your pipes. Close the valves and release any water by using a screwdriver to turn the test ...