stevelv wrote:

You might want to check out some of the pics in my rebuild thread in my signature - I completely understand where you are coming from and the sort of damage that can occur from broken or leaking pipework.

As you say, the carpet and underlayment is laid as a single piece during construction and then the cabinets etc all built on top of it - makes removing it a real pain in the rear!

My tub had been leaking over the years but was in great condition so didn't feel like removing it. I managed to replace the old pipework behind it with copper and PEX but underneath, there was a hole in the plywood for the P trap to sit in - I drilled down into this with a pilot drill and then from underneath with a 1/2" drill and then pushed a 4" piece of pex with a touch of silicon into the hole. From inside the RV, I pushed the pipe back down until it was flush with the floor at the bottom of the cutout.

This now provides a drain for any water that get's under the tub so that it will save the rest of the flooring and I'll see/hear evidence of a leak easier.

Of course I also removed all the carpet and underlayment from under the tub, tiny piece by tiny piece