Grey Water Leak, Might need to remove

[Nerdoboy]

Hi everyone - I have a 2001 5th Wheel Toybox. When I run water in the shower/tub I develop a pretty good leak underneath coming from the forward grey water tank. I have been able to confirm there are no leaks above floor. It looks like have a problem where the drain connects to the top of the tank. It looks like a job to pull the tank down so I was hoping someone out there can let me learn from there mistakes. How far can I drop the tank and be able to access/connect/disconnect any fitting and pipes? How does the drain connect to the tank? What do you do about the the under watchamacallit (insullation)? Are there any videos or diagrams for this job that anyone knows about?

Thanks!
-Nerdoboy

[Hob]

In my previous TT I had a square access that unscrewed with 4 screws from the outside of the tub but even with the drain in the tub. I played my cards right and was able to get in and tighten my tank connection without dropping the tank.

[Nerdoboy]

I have the same access door. When you say you were able to tighten the tank connection, how did you do that? Is it threaded or is there a hose clamp or what. Thanks for the knowledgeable reply