Everything that currently exists is written in red. Does anyone see any issues with the plumbing additions? I’m not sure how it is in other states. In Alabama, gas fitting and plumbing are regulated by the same state agency but they are different licenses. I’m a master gas fitter but along the way only learned enough plumbing to be dangerous. The thing I am not sure about is the existing 1.5” Vent. Could it be eliminated? If I did that would the new 3” Vent be adequate for the DFU’s. I know the toilet should be the last fixture on a wet vent. Would the toilet by the 1.5” Vent cause a problem because it’s in the middle of the run? Should I vent it independently into the 1.5”?I could very well be totally missing other important things as well. Any input would be appreciated.