When I take out the TM to pack up for that trip, I will cut my long pipe segment and insert a ball valve (which I have already bought) to prevent
'juicy juice'
from splashing up and wrecking the fan during travel.
Since we sometimes come home with a loaded toilet, that's important. Later in the week (we're driving almost all of it, both ways):
https://travelnevada.com/road-trip/l...-road-america/
Edit 6/2/2020: Valve is in, and the 3/4" pipe inclines towards the bathroom sink cabinet. Valve handle fits just underneath the folded walls in travel position (on the flexible 'rest').