On Sep 17, 4:44*am, NealR2000 wrote:
I have a finished basement, with painted sheetrock on the walls. *One
of the walls got water damaged a year ago, due to outside flooding.
The exterior problem has since been fixed, and everything is now dry.
The result, however, is a fair amount of minor "bubbling" on the
sheetrock.

Can this be sanded down and re-painted, or do I need to have new
sheetrock installed? *I thought I could just have it sanded, but a
friend of mine said that sheetrock has a top layer of paper, and you
cannot just sand this down.

depends on how good you want it to look, where you live and how moist
the basement is on an ongoing basis

is the wall textured or smooth?

your friend is correct, actually paper on both sides

and if you sand too much you'll "burn through" the paper but no huge
deal, you can just mud over it to smooth it out

I'd sand or cut off the bumps, skim coat with a little 20 minute mud,
let dry (use a fan), prime & paint

it will be fine

cheers
Bob