[huhhhhh]

Originally Posted by Tafakot

So far, your ideas are making sense, however, with a toyhauler...theres another half bath in the "garage" area and a separate "dual holding tank (black/gray).
The "pipage" is long from both ends and gather mid rig to the final exit point.
Figuring out which is which, isn't hard to do, its more about access.
Interestingly, the valves are not even close to being in line with cables which cause uneven pulling.

Thanks to everyone for your ideas

I have a Fuzion with the 2nd bath by the garage. That 2nd toilet drops right down into the galley tank so as soon as someone does their business in the 2nd toilet it turns the galley grey tank into a black tank. I really wish Keystoned would stop hiring their employees from under bridges. Shame on you Keystoned.