The "swimming pool" will need to be drained and kept dry if you plan on working/living in one in most areas. A silo complex is essentially a complex well, most are below water tables.
I've been in some drier ones in South Dakota, they're damp nonetheless. Not good for server farms or survival life without pumping out on a continuous basis.
I have a daughter. I tell her, "911 is what you dial after you're raped. 1911 is what you should have before they try."