I've started working on our front hall/staircase in our 1910 'colonial'. I removed the outer layer of wall paper to find a layer underneath that (painted, of course) and a third layer under that on top of the plaster. I spent all day yesterday removing the paper and glue, and am left with a wall that resembles the surface of the moon.
I pulled loose plaster chunks out, however there are some areas that are soft where the plaster has lost it's key. It's been recommended to me to just go over it all with 1/4" sheetrock, ironically because it would somehow be easier to wrestle a dozen sheets of sheetrock into a stairwell. I don't want to do that, I think it would be easier, cheaper and quicker (and much more in keeping with the whole old house thing) to repair the plaster.
I've seen referenced here and some other places on the web that I should be looking into plaster washers to re-secure the soft spots to the lathe before I start patching the cracks and gaps with Easysand. My question is, is there a particular technique to using them? I know I'll have to pre-drill into the plaster, but other than that... Is there a speficic design? Spacing? Etc. Just looking for a little guidance before I start drilling holes and making a mess of my front stairs!