...is located in my closet. Apparently, there are two drain holes for my washing machine in the laundry room, and only one of them has a drain pipe attached. Guess which one the drain hose was inserted into?

So, yes. I inadvertently filled my wall with water. Three times (wash/ rinse and wash again) in fact. So, I'm just waiting for the water extraction folks to come and remove the lake from my closet.

I'm hoping the wallboard dries back there and doesn't mold, but some large part of me is saying that's unlikely :/