Because water hides things. We treat it like boring, clear stuff. But TDS proves that every drop is a chemical soup—a unique blend of minerals, salts, and maybe a hint of ancient rock. When you check your water, you’re shaking hands with geology.
Plus, it’s a party trick. Pour a glass of tap water and a glass of distilled water side by side. Tell your guests to guess which is which. They’ll probably fail. Then whip out your TDS meter. Instant hero.
