Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <Parpp807-at-aol-dot-com> Jim, Luc, Maybe I have tuned in a little late but there is no pipe trick needed. The sweat-solder copper pipe couplings come in a variety of sizes and the edges are clean. No tooling needed. Cheers, Ralph Zekelman