My grandpa always said to never drink from the old well behind his farmhouse in rural Ohio, claimed it turned his teeth brown as a kid. Last summer I tested it anyway and found high sulfur and iron but nothing dangerous, so I started using it for my garden and everything grew twice as big. Now I'm wondering if he was just being dramatic or if the well was actually worse back in the 1950s, has anyone else dealt with family warnings that turned out overblown?