We did have our water tested a few years ago when we put in a new well and plumbing. Essentially the test came back as drinkable, no dangerous bacteria and varying levels of mineral content. The plumbing is less than 5 years old so I'm not too worried about that. I'm about 18 minutes from the nearest large city/town (I live in Okla.) in the middle of mostly pastures and farmland. The lemons, syrup, cayenne and Sea Salt were all purchased from an organic health food store. I'll see if I can get the lemonade sweetness adjusted to where I can drink more of it at each sip. It's just too sweet and maple-ey in its current form. I agree about my system needing some serious cleansing. This is my first fasting experience and I know it'll be tough. My husband thinks I'm a bit nuts, but agrees that trying to treat this stuff naturally is much better than the solutions the doctors have come up with! I'll keep checking in with progress. Thanks for the great support!