It boggles my mind why people would even consider doing stuff like this!
I inspected this house for a contractor a couple of years ago. While I was cleaning out my files I came accross this photo. Now with the knowledge I know now, and if I had too write this in my report today for a client I’m not sure what to even say. The joints didn’t appear to be damaged. It is a 3/4" Copper Pipe and it appeared to be supplying H/W to a Basebnoard heating system on a 3rd Flr Bedroom. There where no utilities on at the time of this inspection.
I just thought this would be interesting for discussion. Feed back from you guys would be appreciated with the knowledge you guys posess.