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Americans are lucky to have some of the cleanest drinking water in the world. Yet despite our best efforts, more than 30 million men, women, and children may be drinking from an unsafe supply. How is it in the twenty-first century that tap water quality is a problem in half the United States? The answer…

A TDS meter is a small, handheld digital device that measures the concentration of total dissolved solids (TDS) in water. These solids — including minerals, salts, and metals — affect the water’s electrical conductivity, which the meter reads and converts into a parts-per-million (ppm) value. What a TDS meter can do: 💡 Quick Tip: A…