From a simple sink, all the way up to the facilities that deal with what goes through it, plumbing is a big thing! At least, in our world it ,is, but we’ve seen bathtubs and showers and sinks in equestria, so they gotta have something similar, right? Also, there’s this image right from the comics so…
ANYWAY! You have 45 minutes to figure out what sorta plumbing gets done in euqstria, and 15 minutes to submit your results! Don’t get to dirty now!