One thing I've always wondered about is if there is a deadly pandemic in a City, how long does one have till the drinking water and bathroom water is shut off? Would it be 3 months or a lot less? If there was a pandemic, I want to know how much water I should have on hand to barricade myself in my apartment for 3 months without leaving. I have enough food for 6 months but water is another story. The issue of Security is another matter. Your opinion is welcome.