How to Remove Hard Water Stains From Glass


Hard water stains are often found on your glass shower door or bathroom window. They looks unattractive and they are difficult to remove. Using a shop bought cleaner does not always guarantee the removal of hard water stains especially if the stains consist of dissolved minerals, such as calcium and magnesium.

The most efficient way is by using acid-based cleaners or even using some of the inexpensive natural solutions. For example, you can use vinegar and baking soda that do not come with chemicals to clean the stains. Here you will find many tips that will teach you how to remove hard water stains from your glass fittings. With a little patient, the hard water stains will be successfully removed from glass.

What You Need To When Removing the Stains:

  • Baking soda
  • Vinegar
  • Lemon juice
  • Scrubbing sponge
  • Hard bristled tooth brush
  • Stove top cleaner (like Weiman’s cooktop cleaner)
  • Towels
  • Squeegee

Removing Hard Water Stains from Glass

Prepare Mix

  1. Mix one part vinegar with one part baking soda.  This will create an inexpensive natural cleaning solution .
  2. Apply the solution to the hard water stains on the glass. You can apply them using the scrubbing sponge in a circular movement.  You can also add some lime juice into the above solution to remove stubborn hard water stains. If you are not able to reach a difficult corner when using your scrubbing sponge, you can apply your solution with a hard bristled tooth brush.
  3. Leave the solution to sit on the stain for at least 15 minutes. For stains that have been sitting at your glass for years, it will take a longer time for you to remove them so let the solution sit for longer and repeat the process if necessary
  4. The next step is to use a damp towel to wipe away your natural solution and remove any excess water with a squeegee

Hard water spots or deposits normally contain a high concentration of dissolved minerals such as magnesium and calcium that will increase soap scum, film and lime deposits on showers and glass in your bathroom.

Start Cleaning

  1. After this you can also apply a commercial cleaner such as a cream stove top cleaner like Jif.  Apply the cream stove-top cleaner onto the area that was affected by the hard water stains. Apply in a circular movement using your scrubbing sponge. Leave the solution to dry on the area for at least 15 minutes

When using commercial products that contain Phosphoric acid, hydrochloric and sulfuric acid, you must make sure to wear eye protection and gloves.

Always Remember

When you are trying to remove hard water stains on shower glass doors, you have to ensure that the glass is wiped and thoroughly dried after using any kind of cleaning solution. This is to prevent any recurring and build-up of hard water stains.

Get Everything Dry and Clean

  1. Next, take a towel and wipe of the glass to clear off any excess of the dried stove-top cleaner
  2. To prevent any recurring build-up of hard water stains apply C-Thru Shower Shield, available at such places as Mitre 10 Mega, right after finishing your cleaning task.

Make sure to perform the same process every six months so that the stains or hard water deposits will not build-up onto your glass again.

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