Marborg Industries Dump Station

Go in the entrance farthest from the office and you'll see a dump hole on the ground next to the blue dumpster and "Slow" sign. I just waved at someone when I got out and they waved back and continued working, so I don't think you need to ask anyone before using? I emptied my grey water tank, no problems - but maybe ask before you dump black water (I selected "not allowed" for this review but really have no idea.)