How to Remove Concrete Residue

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If you have a beautiful concrete patio, you probably would like it to stay that way! But a build up of environmental agents and extreme weather conditions can really put your concrete to the test. You are going to need to maintain it from year to year, and part of that will include a good cleaning. To remove the residue caused by the factors previously mentioned, you will need to use a bit of elbow grease. Most residues can be removed by using TSP and a good scrub brush. It will take some hard work, but it will definately be worth it when you see the results.

Things You'll Need

  • Garden hose
  • Safety goggles
  • Rubber gloves
  • TSP (trisodium phosphate)
  • Scrub brush
  • Broom
  • Give your concrete a good sweep. Using a strong, course broom will begin the process of removing unwanted elements from your concrete. Be sure to cover all areas.

  • Hose down your concrete until it is completely wet. The wet surface will greatly help you produce a better result with your next step.

  • Pull on your rubber gloves, and safety goggles.

  • Pour some of your TSP, otherwise known as trisodium phosphate, onto any areas that look as if they are stained or going to need a good scrub.

  • Aggressively scrub to remove the stain with your scrub brush. Rinse with your hose, and repeat if necessary.

  • Repeat the scrubbing in all areas that need it. Once you are satisfied with the cleaning, rinse the concrete one final time, and allow to dry.

Tips & Warnings

  • Don't attempt this project without rubber gloves and goggles. The TSP is a very strong chemical and can cause damage to the eyes and skin.

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