How to Remove Calcium Stains from Masonry

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Hard water can cause unsightly calcium stains on your masonry after time. From watering your garden to running your sprinkler, there are numerous ways that hard water gets on your brick exterior. Over time, calcium stains appear, which creates a white film on your masonry that looks a lot like dried milk. You can remove calcium stains from masonry when you use the right cleaning procedure, and you can protect your brick from future calcium stains by sealing it after you clean.

Things You'll Need

  • Tarp
  • Rubber gloves
  • Plastic glasses
  • Water
  • Water hose
  • Bucket
  • Acid-based brick cleaner
  • Stiff bristled nylon brush
  • Cover the area surrounding your masonry with a plastic tarp. Make sure you cover any patio furniture in the area, as well as the surrounding concrete, plants and landscaping features.

  • Put on rubber gloves and plastic glasses to protect your hands and your eyes from burning because of the cleaning chemicals required to remove calcium stains from masonry.

  • Pour water onto your masonry. You can squirt it on with a water hose or pour it out of a bucket.

  • Mix an acid-based brick cleaner, available for purchase from your local masonry dealer, with water according to the instructions on the label.

  • Brush the masonry with a stiff bristled nylon brush.

  • Rinse the area with water and the stains should be gone.

Tips & Warnings

  • Performing this process multiple times can cause the color of your brick and mortar to become lighter.

References

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