RV Plumbing schematics

[Northofu1]

Hello all,

This may be naive of me to expect something floating around out there. Is there such a thing, a place to view placement of water tanks, piping, electrical, etc.? I have a polar package Or equivalent) on my rv so the underbelly is sealed. I saw the post in here about "composting toilets" (Nice jousting between Festus and Steve S ) I have also seen video on youtube about installs. Any info would help. Thanks
Dan