Good Evening, We have never used the sink inside our PUP mainly because it is in a terrible place--right next to a bunk end. However, I was thinking it would be nice to have running water but not inside. We have 4 kids, and if we used that sink, his pillow would end up covered in toothpaste spit and soapy water. My question is, do any of you use one of the outdoor camping sinks that hooks up to city water? Or is there one that does? It is hard to tell. It would be nice to have. Thanks!