Each floor of my build has two gender neutral restrooms, one in the west wing and one in the east wing. Because these restrooms are gender neutral, there are no urinals. Inorder to conserve water, the restrooms are connected via a grey water system, with the waste water from the sinks supplying the toilets. The grey water collection pipes are depicted in purple, and the grey water supply pipes are depicted in pink. One challenge I faced when modeling the plumbing system appeared when I tried to copy the system up to floors 2 and 3. Revit struggled with copying some of the elements, and I had to spend some time re-securing connections between the pipes and fixtures. I also had to go back to my original architectural model and change the wall size around the restrooms to accommodate the new pipes.