Hiring a contractor to cut and cap the irrigation system may be initially more expensive than having the backflow device tested. However, if you plan to own the property for an extended period of time while never using the irrigation system, then this may be a good option for you. Keep in mind that a cut and cap is a more permanent solution. If you change your mind and want to use the system in the future, you would need to hire a contractor to come back out and reconnect the system. In addition, you must notify the City since the backflow device would require annual testing once the irrigation system is reconnected.