About to add a second fresh water tank under chassis

Golden, Thanks. That's good advice. I have the camper at the shop right now getting a new AC. We had some bad hail storms here this spring and I had quite a bit of damage. When I get back I'll get underneath and see if this will work as easily as my original plan.

Jeff,
Those are some great ideas on your site. Many I had already planned on doing plus a few more after seeing what you did. Thanks.