Structural question

[Fishward]

put some columns under it in the basemment to make sure the joists dont sag, and reinforce between the joists so they dont twist. If you want your home insurance to cover anything that could possibly go wrong, you will likely need to have an engineer sign on off on the design. best bet... put in in the basement, thats a monster tank.

EDIT: also, make sure you put it as close as possible to a structural wall in the basement.