The only option to be exempt from backflow testing requirements is to hire a contractor to "cut and cap" the physical water line extending to the irrigation system. This process disconnects the irrigation system and creates a physical break in the water pipe. Since there is no potential for the water to flow backwards into the public water supply, you would not be required to have the backflow device tested. The City must inspect the cut and cap once it is complete to make sure everything was done properly. There is no charge for this inspection. Upon inspection approval, the irrigation system is marked as inactive in the backflow compliance system.