wood foundation and a large tank

[Delphinus]

Ah yeah, it should be a pretty safe bet that there's a concrete floor. Although, I guess it does depend. A buddy of mine used to live in one of those inner-city houses, I don't know how old it was but it was at least 80 years old, and it only had a wooden floor in the basement. Planks over dirt ... they weren't even nailed into anything, they were just pieced together and laid down. (Whee!)