I received some emails on the sink in the back. I used a tray from a restaurant supply store. the water is supplied from a 18 gal. tank under bench seat. Basically a 12v. sprayer for atv. Plumbed to a hose bib as to double as fresh water wash down. The spray wand is on another hose and works great as a mister or to rinse of when coming out of the water on swim platform. Kids love the wand to spray people with. It will shoot about 15' and when cold can be a eye opener :disgust I am getting some activity from the site and craigs list. Sinking in now that she might be leaving. :sad