Every year I run into a situation where the sprinkler stop and waste valve has been incorrectly turned on or shut off at sometime in the past and no longer functions as designed. The stop and waste valve’s function is to drain the section of copper mainline from the backflow device to the Stop and Waste valve which is buried up to 6 feet deep sometimes.
When opening or closing the stop and waste valve it is important to know the correct procedure. The Sprinkler Guy has 30+ years of experience with stop and waste valves so call us today for professional help.