RV Repair: Squeaky floor in Montana 5th wheel, water storage tanks, waste water storage

Question
I have a 2001 Montana 2850RK.  Two years ago I had all three waste water storage tanks replaced.  The repair shop said they couldn't get the original tanks (not true).  The new tanks had to be hung differently.  The two front tanks, grey and black water were hung by putting carriage bolts through the storage floor and attaching metal strapping to them.  The front tank, galley I have no idea, as the pergo and carpeted floor is directly above the tank.  I now have a squeaky floor in the rear kitchen area of the trailer (galley tank area).

I have an all aluminum frame.  I think they may have attached the tank to the aluminum floor joist frame causing it to separate from the floor just enough to squeak when you walk on it.  How can I fix the squeak?

Answer
Sandy, This may be difficult to get out. I would hate to try and tell you what to do without looking at it myself, so for that reason I suggest that you take it somewhere to have someone look at it that has experience in this area. Sorry that I can't help more, Bill