- 1). Fill a spray bottle with white vinegar. This is an all-purpose glass cleaner that also removes the hard water spots quickly.
- 2). Spray the solution onto your glass surfaces, covering all of the hard water spots.
- 3). Wipe off the vinegar with a cleaning rag. Examine to see if any hard water spots remain on the glass surface.
- 4). Spray a thick coating of the vinegar onto the glass if any stubborn spots remain and let the vinegar sit on the glass for about five minutes.
- 5). Scrub the vinegar off with a cleaning rag. Repeat until all hard water spots disappear.
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