I am adding a basement bathroom. The floor is structural (wood over metal joists) so I have good access to drain pipes beneath the floor. There are drain/vent stacks on opposite ends of the basement which serve the upper levels of the house - one on each side of the I-beam. The nearest stack is also the one on the near side of the beam (which is good) and it is 25 feet from the proposed bathroom. I want to combine the vent lines for toilet, shower, sink and route that vent along the ceiling and tie into the one of the 2 main stacks. The tie in point however will need to be lower than the highest point in that vent path. So the fixtures will vent up then across and then down about 2 ft. Is this permissible? Will it conform to code? Are there concerns about gasses being trapped or collecting due to this arrangement?
See my attached drawing.
Your expert opinion is GREATLY appreciated
Mark
See my attached drawing.
Your expert opinion is GREATLY appreciated
Mark