This post shows the drain lines. I decided to place these lines due to the slab being level/no slope. At this point I had not formed the approach, seen in the previous stage.
I also placed a graywater drain for a washing machine and shop sink. These were located on either side of the window on the wall of my garage room. I’ll receive hot water from an instant water heater. These lines were not in place until the pouring began. As a result, I didn’t have chance to take any pix of them in particular.