[Paul T]

Originally Posted by gsxrken

Disagree. That’s a poor job. He should either used a reducing adapter or an expansion tool to step / stretch the one line to fit over the other.
And dollars to donuts: the guy that was ok with that method did not back purge with nitrogen, so you’ll have all sorts of carbon particulate circulating forever in your system. Ugh

I concur, workable or not that is just sloppy and lazy work. I’d be worried about the rest of the job. This is someone who has no pride in what they do, IMO.