Here's a rough diagram of how my plumbing is, typical cast-iron, 1950's stuff.
A buddy of mine is convinced that it's improperly vented, and will clear the S-trap out, yadda yadda yadda.
"code" or not, just looking at it, the venting seems adequate and no siphon-effect will occur. He claims the toilet should have been on top of the other Y's???
I want to redo it in PVC, I planned on just pretty much replicating that, or would you do it differently?
I've never had running water in this house yet, but I'm sure it must have been fine for the previous owners if they used it for 50 years...