If your glass shower door looks foggy no matter how hard you scrub, the problem probably isn't your cleaning skills. It's your water. The U.S. Geological Survey’s Water Science School notes that water hardness, or the amount of dissolved calcium and magnesium it contains, varies across the country, and one of the most common signs of it is cloudy glass and dishware. When that water dries on a shower door, it leaves a chalky film behind. That’s why a simple bottle of white vinegar has quietly become one of the most talked-about cleaning hacks among American renters.
What's actually causing that cloudy glass
