Originally Posted by Rain Man
I'm going to sound like a nut job when I say this, but remember that I'm a child of the Cold War.
I kind of like having a tank in the house, because if there's some sort of major emergency it's a good water supply for a couple of days.
Get a 40 gallon pressure tank not only will it have 40 gallons of water for you but it will also give you pressure even if you lose water pressure. You'll have 40 gallons worth of pressure before you actually have to do something.