On Jul 18, 8:48*am, jamesgangnc wrote:

I'm not an expert but my mother lived in a older single wide for a few
years in FL. *The vents were sheet metal between the floor joists.
Then sealed with from the underside. *Plumbing was the same. *In FL
they slowly settle into the sand so there was not really room to get
under it anyway. *We pulled up floor from inside to get at a drain
problem. *I don't know about newer ones but it struck me that
maintenance was not given much consideration in the older ones. *They
lasted about 30 years and then seemed to be disposable.

After I posted, an old(er) lady told me formaldehyde was used heavily
in mobile home construction. Now I'm wondering if that's the reason
for all these wall tear-outs and replacement with cheap(?) plywood,
and that awful stinky stain. I mean, what are the chances of going to
three mobile homes in three different parts of one county and finding
all-wood walls (pretty nice to look at, actually), but all with that
awful stink?

Thanks for the head's up about the floor issue, which has to explain
why the heating system can never be cleaned.

Sad. Your mom was lucky to have you.