I am in the process of installing a master bathroom on the first floor of my single story w/basement house. There is currently one full bath tied into the main stack and I would like to attach this bathroom just below it. From the perspective of the stack the toilet is the furthest fixture at about 15 feet. Attached is the plan that I would like to implement. Before I submit it I would appreciate any comments/feedback/suggestions that the members of this forum may have.