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How Using Concrete?


Clean debris off the wall with water and a sprayer. Remove as much debris as possible from the wall so the concrete bonds cleanly to it. Spray away most debris with water from a garden hose. Also, try mixing 1 cup (240 mL) of a mild dish soap into about 5 US gal (19,000 mL) of hot water to scrub off tough stains with a concrete brush.


Use a power washer for extra cleaning power. If you don’t own one, see if your local hardware store has one to rent. For tough stains you can’t quite remove by hand, mix 1 cup (240 mL) of trisodium phosphate in about 1 US gal (3,800 mL) of water. Scrub it into the stains with a brush before rinsing it off with clean water.


The chemical is strong, so cover up with long-sleeved clothing, gloves, goggles, and a respirator mask. Mix surface bonding cement with water to a pasty consistency. The easiest product to use on a cinder block wall is surface bonding cement. All you have to do is pour the cement into a container such as a wheelbarrow, then stir in the water with a shovel.


You need approximately 4 cups (950 mL) of water for an 80 lb (36 kg) bag of cement mix. Shop online or visit your nearest home improvement store for cement and all the tools you need to apply it. With surface bonding cement, you don’t need to apply a concrete bonding adhesive.


If you wish to use another type of cement or concrete, also get a bag of adhesive. Mix it with water and spread it on the wall first. Wet a section of the wall again to prepare it to bond with the cement. Spray the entire wall thoroughly with water from a garden hose. Then, go back to a section of the wall to work on first. Spray it once again with water.

How Using Homemade Cleaners?

Use a paste of baking soda and bleach. Make a thick paste from ¾ cup (180 mL) of baking soda with ¼ cup (60 mL) of bleach. Use an old toothbrush or nylon scrubbing brush to work the paste into the grout. Let it sit for 15 minutes, then scrub it. Allow it to sit another 15 minutes, then wipe it off with a damp rag. Frequently rinse out the rag with water as you’re wiping off the paste.

Wear gloves when cleaning with bleach. Open a window or wear a respirator to protect your nose, throat, and lungs. Protect your eyes with safety glasses. Wear old clothes that can get bleached.

Try baking soda and vinegar. Rub baking soda into the grout with your finger. Make it stickier by combining water with the baking soda until you have a thick paste. Next, fill a spray bottle with vinegar and spray vinegar all over the baking soda. Let the mixture bubble for a few minutes, then scrub it with an old toothbrush or nylon scrubbing brush. Wipe up the solution with a damp rag that you rinse frequently.

Scrub it with coarse salt. Wet the grout and surrounding tiles with a damp sponge. Sprinkle it with a coarse salt, then scrub the salt into the grout with a toothbrush or nylon scrubbing brush. Allow the salt to dry overnight, then rinse it off in the morning. Scrub with any coarse salt, even Epsom salts. You can use the same method to clean your grout with Borax. Put a damp scrub brush in a bowl of the Borax and use that to scrub the grout.

Clean and lighten the grout with cream of tartar. Combine two teaspoons (9.85 mL) of cream of tartar with enough lemon juice to create a liquidy paste. Rub the paste into the grout, then scrub it with a toothbrush or nylon scrubbing brush. Rinse the paste off with plenty of water. Use water if you don’t have lemon juice.