Plumbing System Recommendations

Here is a sectional view looking at the south bathrooms (the walls and stalls are hidden in this picture). I have never noticed the slope in the sewer pipe in real life, so this is interesting to witness.

Below is the schematic of the plumbing system containing the fixtures, hot water pipes, cold water pipes, and the sanitary pipes.

I found that mirroring the lines were more complicated than expected, because to maximize the efficiency we need to mirror the riser pipes twice. Otherwise everything is pretty straightforward since everything else is set up nicely.