I tried to capture as much glory in one photo as I possibly could
Polybutylene, the weirdest pvc fitting (looks illegal) I have ever seen, and some genius ran the water softener drain by DRILLING A HOLE in the end cap. It’s funny because the lazy way, IMO, to run that drain would be shoving it in the nearby laundry standpipe.. but that requires moving the washing machine lol.
Don’t even ask about the drain line in the back. The first half goes slightly uphill for a bit and the second half screams downhill. Not a plumber, but I helped the owner delete all the poly and ran pex with a couple of copper manifolds. It wasn’t perfect, but certainly better than what he had lol. Recommended getting the drains corrected ASAP