[DUMBGRUNT]

—”the horsehair plaster”

That stuff is like kryptonite!

As they plastered over the open lath, wet plaster splashes down on the bottom plate and piles up.

I’m not wild about wireless devices and Cat 6 is cheap/ (free in short leftover lengths).

Drilling from the basement up the stuff usually just moves upward and dulls the bit, carbide hole saws will NOT drill through it. With luck it can be pushed out of the way and a sleeve pushed in to hold it; sometimes. Diamond hole
saws just move it and rattle in the wall.

I HATE THAT STUFF!

[Dr. Sivana]

Drilling from the basement up the stuff usually just moves upward and dulls the bit, carbide hole saws will NOT drill through it.

And it tends to break up when you use a sledge hammer and crowbar to just rip it out. Hard to find a landfill that would take it in CT.