Rear pan question

[millertimeUS]

Hello all, in the process of getting to my rotted rear floor on our 76 Tradewind. Trying to drop the rear pan under the bathroom. Very rusted and covered in holes, have all but 1 bolt out that I might have to cut off with angle grinder as the bolt head it very corroded.

The streetside tank drain pull is keeping the pan from coming down as it goes through the pan and rear bumper. How do I remove it?

Also, was planning on getting a new pan made by a sheet metal shop in town. Go with galvanized steel and paint?

[putback]

If you're working on the pan that holds the black tank the ones I've done pretty much require pan and tank to come down as one unit. That means cutting the floor out around the toilet flange and cutting the vent pipe close to floor level. Then you should have some wiggle room to slip the drain pipe through the bumper. Seems if you wanted to leave the tank in place you could cut a section of the pan above the drain pipe and drop just the pan. That would require the replacement pan to also be slotted to get it back in position. If you try that route make darn sure the tank is 100% empty!!!!!!! And have a way to support the tank in place so as not to harm the toilet flange and vent connections.

[millertimeUS]

Wow really? Hope that isn't the case with mine. How would anyone ever service a bad tank valve without taking apart the whole rear bathroom of the camper if that was the case?

[millertimeUS]

You were right! The handle was riveted in. Why would they design it that way? They would have to have installed it prior to putting in the rear floor.

[putback]

Yea, you're gonna find out they built these things like stacking cord wood. If you want the bottom block you may have to unstack the whole pile, or improvise. The bath area is the worst!!!!!