Yeah, I'm thinking about it.
I am absolutely not going to close the walls up without removing the copper waste lines. I realize it only rotted out in one spot but they are 50 years old and I'm just not going to leave them.
So, I need to deal with this.
I'm still googling but I think I'll need to replace that cast iron tee (or whatever it is). I don't think I can simply take the copper out and slip pvc into the connections.
This is the part I don't feel confident about. First of all the pipe that goes up through the roof is more than likely all kinds of heavy.
Then, I'm really not sure exactly what I need to do to replace it.
I told my wife that I'm thinking about tackling it myself. Her initial reaction was "NOOOOO!". But then she thought about all the stuff I've fixed since we've been married and she's ok with it if I want to. Plus, if I get stuck, I'll just call the plumber.