When the plumber first came out this week to see what was going on and come up with a plan, we were walking around near the woods looking for a possible gray water pipe. We didn't find one, but as we turned around to walk back to the house he looked down and saw the edge of a round piece of concrete. A lid.
We have been over in this area 100 times and had never seen this thing, but now there was a piece that was partially uncovered.
My imagination went wild as we had the boys bring us shovels, "What if it is a buried treasure? Oh, if it's an underground bunker that would be so freaking cool. If we find money, I'll split it with you."
We shoveled and dug for about 15 to 20 minutes and uncovered the lid completely.
We let our handyman do the dirty work of lifting up the lid.
No treasures. No underground bunker with 50 year old canned goods.
Turns out that this must be a drainage area for the water that seeps into the ground around the house. It must get routed here, fill up this chamber, and then leak out when it is full. We aren't sure why there are brick inside, unless someone wanted to be able to stand inside of it and not drown.
Mystery is solved, and the lid was put back on.