Upstream of the meter? I doubt it. I was commenting on my initial thought of nothing sweated outdoors, but of course, downstream of the meter, any leaks are on your dime. a Waterworks Compression fitting is something on another plane, compared to anything sold in the irrigation biz. Besides their physical strength, they mechanically, with metal, grip the tubing/pipe they are connected to. Also, for the Ford and MacDonald tees, they also provide electrical continuity, in the event the pipe/tubing is serving as an electrical ground.