Content

• To step
• Method 1 of 2: Pressure washer
• Method 2 of 2: By hand and garden hose
• Tips
• Warnings
• Necessities

Bricks are very durable and remain beautiful for a long time, but bricks also require some maintenance from time to time. If your brick wall has become stained and discolored, you can easily fix this; with a little effort and readily available cleaning products, your bricks will look like new again.

To step

Method 1 of 2: Pressure washer

1. Rent a pressure washer if your wall is very dirty or stained. Be careful not to damage other parts of your home.
2. Get all the materials you need before you start. You will need a bucket, bleach, brush, garden hose and pressure washer.
3. Apply the mixture to the bricks with a syringe or brush.
4. Always saturate the bricks in small pieces.
5. Spray the wall. Now the wall should be completely clean.

Method 2 of 2: By hand and garden hose

1. Determine what type of pollution is on the wall. Mold, mildew and algae can be removed with methods and chemicals other than rust stains or splashes from cement and mortar.
2. Clean your bricks with a bleach mixture if you suffer from mold or mildew.
   • Mix bleach and water in equal parts in a large bucket.
   • Pour the mixture into a garden sprayer with a hand pump.
   • Moisten part of the wall with a garden hose.
   • Spray the bleach solution on the surface, start at the top and do not over-spray.
   • Let the bleach solution react with the dirt for a few minutes, but don't wait too long, it shouldn't dry.
   • Rinse part of the wall with clean water to see if the solution has worked.
   • For severe stains, you can scrub the wall with pure bleach.
   • Rinse the wall thoroughly with water. The bleach shouldn't have dried before you rinse it off.
3. Use an acidic solution to clean mortar stains, rust stains, and stubborn stains where bleach will not work.
   • Buy an acid-based brick cleaner at the hardware store, or buy hydrochloric acid (read the warnings below before buying or using hydrochloric acid).
   • Fill a plastic bucket 2/3 full with clean water. Add hydrochloric acid in the ratio of 1 part hydrochloric acid to 3 parts water. Do not overfill the bucket as this mixture should not be accidentally spilled.
   • Wet the wall or surface with a garden hose.
   • Apply the acid mixture to the wall with a stiff brush and scrub the wall.
   • After applying and scrubbing, let the acid work for 10 to 15 minutes, but be careful not to let the wall dry.
   • After soaking, rinse the mixture off the wall thoroughly with clean water.
4. Clean all surfaces exposed to the above cleaning agents. To do this, use a lot of water to dilute it so that you don't damage surfaces or plants.
5. Consider sealing the bricks to prevent future contamination. To do this, use a siloxane or silicone sealant and follow the manufacturer's instructions when applying.

Tips

• Do this job when there is little wind, as bleach and hydrochloric acid are poisonous.
• Wear old clothes, rubber gloves, and goggles if you are going to do any of the above.
• Work in the shade if possible.

Warnings

• Avoid skin contact when using acid or bleach, even in diluted form.
• Try not to inhale the fumes.
• Never mix hydrochloric acid and bleach.
• Wear goggles
• The use of hydrochloric acid can actually cause discoloration and damage to the joints. In addition, it is very difficult to completely remove hydrochloric acid after cleaning, and that can cause problems later. A dilute solution does not help against this. Hydrochloric acid bricks contain other chemicals that make them safer, easier to use, and often better for the environment.

Necessities

• Hard brush on a stick
• Rubber gloves
• Hydrochloric acid
• Bleach
• Garden hose
• Safety glasses
• Optional: high pressure sprayer