I dug up a domestic line to tap it for our double check and was amazed at what I found. This area has no meters, simply a gate valve. The plumber had originally used a plastic barb and a single clamp to install the gate valve on the street side, and then used a plastic tee to install a drain. Everything was single clamped on poly. This is probably the worst domestic install I've seen. I just can't believe that a plumber would use a plastic barb fitting on the street side of a shut off valve. I'll take a picture tommorow with my snazzy new camera phone.