I have to say MH has a valid point about hard water. When MH mentioned this: "People who drink hard water accumulate their rocks and loose their circulation as they slowly turn to rock"
I can personally attest to that. My mother and I both have circulation issues- especially our limbs-- and we've lived here all our lives drinking Well Water.
I filter our hard water now- and intend to get a distiller eventually. I have noticed a BIG improvement on my circulation after only drinking our well water after it is filtered. Now I love Watermelon, because I am getting free healthy distilled water from inside the fruit.
If any distilled water is going to be bad for you-- then its the distilled water they sell in the stores.