How Spot-Free Rinse Works: TDS, RO, DI, and Drying
A spot-free rinse uses water with very few dissolved minerals, usually produced by reverse osmosis, deionization, or both. When that water dries on a vehicle, it leaves little inorganic residue behind, so calcium, magnesium, and silica cannot form the visible rings associated with ordinary tap-water droplets. Key Facts at a Glance Spot-free water prevents mineral […]