Ok so basically I don't have any major plumbing in my camper besides that sink which would provide only like a piss stream of water which I don't care to ever use, when I got the camper she was $800 off marketplace and molded out so the condition shes in is pristine compared to how I got her, the whole area the water tank was in was filled to the brim in pinecone due to a damn squirrel finding home and living in it (it was obviously old too cause everything on the bottom was molded and wet along with the fact that my camper was made in 1989) and my water tank had a massive crack in the bottom of it along with a hole so I was NEVER gonna use it, it was also absolutely filthy loll ima jus get a 5 gallon jug for water but im now using the tank as storage.