https://imgur.com/a/HiFAyZV
- I've got this fat drain pipe blocking the hot and cold pipes that feed down to the shower valve, forcing the whole rough assembly beyond the studs. I am going to switch to PEX and run them behind the fat pipe to fix this. Is this ok and if so do I need to insulate the PEX at the point where it’ll touch the fat pipe? any other considerations? The fat pipe is metal, and I'm in a condo so it's shared (I didn't do the couplings, this is what I found in the wall)
- Since I want to replace the copper pipes with PEX, I need to cut them and solder/crimp the transition. Water is fed from above via 3/4 pipe which has a point of solder to a 1/2 pipe. So should I cut the pipes above the point of soldering, on the 3/4 pipe, or do I cut the pipes below the soldering on the 1/2 pipe.