OK I got all my plumbing systems done today. I am using a 10 gallon fresh water tank with a 12v pump, a city hookup and a 11 gallon grey water tank.
My Mechanical area is starting to fill up, still got to get a battery, inverter and trickle charger in this space.
I may have over done it with the pump, it has the capability to will drain the tank in 3 minutes!
Made a manifold so I could easily change over water supplies.
Nothing too exciting here just the drain!
Flows to my reworked grey water tank.
I had to build something to hold my grey water tank dump valve, probably a bit overkill since you won't see it unless your hooking up the hose and draining the tank. I used the same detail that the wings have. I made it using a piece of Western Red Cedar coated in rubberized undercoating, then used some aluminum to clad it.
Dump Valve