"Nate Nagel" wrote in message
...
Started another home-improvement project today - removing the ancient,
painted-over, peeling-up peel and stick vinyl floor tiles in my laundry
room. Underneath the clothes washer I found a hole in the slab - looked
to be intentional, about the size of a 1x2 board. perfectly rectangular
and appears to go all the way through the slab. I've never seen anything
like it before, what could its purpose have been? To prove to the new
homeowners the thickness of the basement slab? Should I just foam it up
or does it provide some other useful purpose?

I'm gonna be hating life tomorrow... all sorts of hideous, dusty filth was
collecting under the tiles, although once I get it done I can scrub the
slab clean and enjoy an actual clean basement.

Why is it that every home I move into has a filthy basement and I end up
having to don hazmat gear to clean it up and make it pleasant again?

nate

--
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This was likely a 1x2 post driven into the ground and used to mark the
proper level for the top of the slab when it was poured and screeded level.
The wood could have rotted out over the years. They are generally removed
after the concrete is leveled but sometimes one is forgotten. Just pour the
hole full of thin concrete mix or whatever you feel like using to fill up
the hole.

Don Young