This may not apply, but worth checking. On my 23b I found that there was water leaking in the area of the wheel wells. The factory did what I feel was a poor job of fit and finish on the wheel arches. I suspect partly because after the plastic arch trim was installed it was all hidden.
Anyway, there were gaps between the wall and wheel arch which let water in to travel mostly to the rear sections of the trailer floor.
Originally Posted by Frank Rader
... When we have leaks sealed, we do the floor.
I've noticed you commented in other threads about a generally soft floor.
Not that you asked...
Ignoring what sounds pretty bad for you in the bathroom...
Is the trailer basically solid other than soft spots developed in the traffic areas? If yes, have you considered just adding a layer of 1/4" luan and new vinyl just in the traffic areas? Another possibility might be the snap together laminate flooring. It is a bit heavier and more expensive than luan and vinyl, but might be an easier install overall. Cardboard templates are your friend for repairs.
I bought a trailer that had a bunch of water damage. Contrary to some advice I patched and repaired rather than replacing flooring, etc. The repaired trailer is working great for us.
My wife and I installed new vinyl in the living area only. We didn't worry about the vinyl under cabinets, under the J steel sofa, etc. We just bought a closeout remnant and basically fit and stapled it down around the edges. A few places I used 1/4 round to dress off. Others I just left because the fit was good enough for us.
You are in the same boat as we are. Your trailer is only worth so much for sale or trade so new floors and expense probably don't make sense. BUT... maybe with a bit of relatively minor repair you can get many years of use out of it.
Some info about my repairs can be found here. There are probably other threads too, but I don't recall them.
Here's to good repairs for you too. vic