In the attached drawing, I show a proposed pipe route for a 2" dwv from a bathroom sink to the main stack in a 2nd floor bathroom. I would like to know if the route is permissable and of not, can someone give me instructions on a better route.
I can not go straight and "put-in" a new stack due to existing heating ducts.
Also I would like thank everyone on this forum. I have learned alot just from reading the questions and answers.