[Rockstar48]

Originally Posted by rohrmann

Don't rely on plumbing colors. Our rig uses red for hot and the black tank flush, blue for everything else, including the winterizing plumbing. Photos of the back of our convenience center and the port where the black tank flush line attaches to the front of the tank. Also a photo of the check valve/air gap valve inside the wall, note the red PEX line there too. No white PEX anywhere in our rig.

Thanks for your help….!