We found an old cast iron bathtub in one of our barns when we bought this place. It looks like someone was using it to mix concrete in...go figure. Anyway, we have discussed digging a pit, filling it with rick and sand sort of like a leach field and burying the tub as a "pond" for our ducks. Maybe they did something like that and it just filled in over the years.That's going to be really nice, and I'm so glad they have a good home!
Odd about the bathtub thing. I'm trying to figure out why anyone would bury a bathtub in the backyard.