I am in the midst of demo for a bathroom remodel and, long story short, need to convert existing 1.5" drain to a 2" drain. The vent for this drain takes three turns into an exterior wall, up into an inaccessible eave and then back across the attic space toward the direction it came from the floor below. I'm not sure why it took the three turns instead of going straight up unless it is because the electrician got there before the plumber did, if that would be a reason, because there is a single electric line going across the wall above the vent where it turns.
So I have a few options.
1. convert to 2" WHERE POSSIBLE, though this probably means leaving the elbows in the eave at 1.5"
2. run a NEW vent without removing the original vent
3. run a NEW vent and bypass the old vent.
So I have a few options.
1. convert to 2" WHERE POSSIBLE, though this probably means leaving the elbows in the eave at 1.5"
2. run a NEW vent without removing the original vent
3. run a NEW vent and bypass the old vent.