[rames14]

BMW, the tank handle/valve replacement is not a complicated process. It’s screw, nuts and a cable. As Bob said, they now use nails to install the coroplast. On our last Montana we upgraded the rig to SeeLevel gages and Valterra valves. To get the coroplast down there are two recommended ways. Some have had luck backing them out with a socket. I ground a notch and used a claw bar - just like pulling a nail. When reinstalling, use SS self tapping screws with a SS washer. The stock valve is a Bristol braided cable valve. I recommend using Valterra solid wire valves. Up to you, but while you’ve got the coroplast dropped and access, I would replace the black valve at the same time. Best of luck.