Need help accessing grey tank inlet

[Bumbledown]

I have a 2002 Gulf Stream Conquest - the tanks are visible by opening compartments behind the rear wheel. We have a leak which seems to be at the top of the tank, presumably the inlet connection. I can’t seem to access the top of the tank easily - my best guess is that I’d have to completely remove the shower to get to it. Does anyone own this model and know how to access the top of the tank?

[Chuck v]

Tanks can usually be lowered from below...look for information or videos on the web.


Chuck