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On July 15th, 2018

How to Remove Hard Water Spots

Posted In:
Window Cleaning

Safe and Effective Methods to Remove Hard Water Spots on Any Surface

Hard water spots which are sediments that accumulate on surfaces are caused by minerals present in the water. The spots are a pain to deal with as they might damage surfaces such as exterior windows and glass showers. You can remove the spots to make your preferred surface smooth, shiny and attractive again. Read through this piece to learn how to remove hard water spots on mirrors or glass.

How to remove hard water stains on any surface

You can get rid of these hard water sediments using an acidic solution. However, carrying a can of hydrochloric acid around your home might not be the best idea. The following methods are the most effective and safest for removing the stains.

How to remove hard water sediments

Method I- Best for mild cases
You will need:

  • Spray bottle
  • Pure lemon juice
  • A very firm toothbrush
  • Baking soda
  • White vinegar
  • Scrubbing pad regarded for glass or 0.0 rated steel wool.


  1. Look out for a stained surface and spray your juice directly on the spot. Wait for some minutes.
  2. Mix lemon juice and vinegar in equal proportions. Add baking soda to the solution till its evenness feels like soft scrub.
  3. Use steel wool or a scouring pad to apply the mixture to spots through continuous circular motions. Try to use a toothbrush when reaching those hard to get edges and corners. You will hear some fizzing as the liquids react with the baking soda.
  4. When done, rinse and smile, your surface should be as good as new.

New stains can be prevented by spraying the glass with the vinegar and water solution occasionally. For more stubborn spots, cerium oxide is ideal in preventing the formation new stains. cerium oxide is stocked in different grades or prices, and the expected results depend on the quality of the product. In which case its highest grade gives the best outcome.

Although cerium oxide is considered safe to use, the product contains powder, and therefore it's advisable to use a dust mask when handling it to avoid inhaling the powder. This kind of method requires you to use suitable tools such as glass rotary buffing tool when polishing the pad.You can also hire the services of a professional to do the process for you.

Method 2-Best for more severe cases
You will need:

  • Scrubbing pad specifically for glass or 0.0 rated steel wool
  • Water-filled spray bottle
  • Buffing tool with pads for glass
  • Premixed cerium oxide slurry or cerium oxide powder


  1. Mix the cerium oxide powder with water to get a slurry whose evenness feels like soft scrub.
  2. On the scrubber pad, smear cerium oxide slurry and apply mild pressure to work small circular motions. To prevent your surface from drying up, use the spray bottle to wet the surface.
  3. Rinse and dry off the surface.
  4.  In case you use a buffing tool, start slow initially focusing on one section at a time. Then pick up the pace while focusing on larger sections. Don't apply too much pressure on glass surface.
  5. When finished, rinse and smile, your surface should be smooth and shiny again.

Follow the above spots to remove hard water spots. You surfaces should now be smooth and your windows clear and spotless. Prevent new spots by frequently cleaning the surfaces.

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