On my 32BHDS the tub walls can be pressed in, but this is by design. The tub has a top lip that extends up behind the shower walls several inches. The reason there is some space between the shower walls and the camper walls behind the shower walls is to help dry any humidity/water that gets trapper there.
I have been looking for some triangle shaped pieces, that I can't remember where I saw them on someone elses tub. They attach in the corners of the tub and redirect the water run off back into the tub.
Joe, Joyce , 4 Kids and 3 Dogs.
2004 V-10 Excursion with Hellwig sway bar, Roadmaster Active Suspension, Bilstein shocks and steering stabilizer, Super Duty Tow Mirrors,
3.73 Gears, Reese dual cam, Prodigy brake controller.
2010 Jayco Jay Flight G-2 32 BHDS