Hard water stains can appear on shower doors, windows and glassware seemingly overnight, leaving behind a cloudy, chalky film that won’t budge with regular soap and water. These spots are caused by ...

Apply vinegar to the stain, sprinkle with baking soda, let it bubble, then scrub away. Mix borax with water to create a paste, apply to stains, let sit, then wipe clean. For stubborn stains, use ...

Add Yahoo as a preferred source to see more of our stories on Google. A person cleaning a shower door - Nadiia Borodai/Getty Images Hard water stains on your shower doors, windows, and other glass ...

Add Yahoo as a preferred source to see more of our stories on Google. Hard water stains come from calcium and magnesium buildup. Vinegar, baking soda, toothpaste, and hydrogen peroxide all work on ...