It isn’t all sunshine and ratchets. ProPress has limitations.
Flux is acidic. If you don’t wipe it off after soldering, it can corrode the pipe over time. ProPress uses no flux, meaning cleaner lines and less risk of pinhole leaks years down the road. propresser
But if you walk onto a new construction site today, you are just as likely to hear the ratcheting click of a ProPress tool. Manufactured by Viega, ProPress is a mechanical press fitting system that has fundamentally changed how we join copper tubing. It is faster, colder, and statistically more reliable than traditional solder. It isn’t all sunshine and ratchets
The liability of fire alone justifies the tool cost. Being able to press a valve onto a live 2" main line without shutting down a 40-story building is a superpower. If you don’t wipe it off after soldering,