This is starting to get interesting...
Last evening: I was crawling around under our 29H (looking for a place to hide from the Missus!
)
About mid-ship: I saw the big black sewer pipe that runs from the tank, to the Bomb Bay Doors...
Right at the base of the tank, was another one of those handles that look like the ones used to open up, and dump the tanks...
This one was closed!
I guess that it's probably good that we haven't tried to empty the tanks yet!
I assume that this should be left open for normal use, and then closed up during the winterizing process???
Or leave it closed, and only open it for dumping purposes???