I have searched and cannot find this information anywhere (also searched the entire forum).

We have a 2021 Imagine XLS 22RBE. My question is: Where is the vent pipe for the black tank? Someone in a FB group for our model said it runs up the back of the cubbies between the shower and back wall. I was just hoping there was a way to remove those cubbies that we don't use and put in a bigger shower...the one in there is just too small, and I would like to put one in there similar to what you find in the Solitudes (heck, anything would be bigger than what we have now). If that vent pipe does run in the back of the cubbies and not inside the wall itself, I'm going to be you-know-what out of luck.