I hope the above explains what I'm trying to do. The drain continues to the stack. Is the above allowed? Is there a "smarter" way of doing this? I'm able to move plumbing and vents around, just not fixture locations (e.g. add a vent for the tub if needed rather than wet vent through lavatory)
Just in case the above isn't clear, the "black" pipes are horizontal / in the floor, between joists. The "blue" is in the wall / vertical.
Just in case the above isn't clear, the "black" pipes are horizontal / in the floor, between joists. The "blue" is in the wall / vertical.