Cleaning a brick wall is a simple process that takes a variable amount of time depending on the size of the area that needs to be cleaned. To clean your brick wall, you need a garden hose, a bucket, water, gloves, goggles, bleach and a sturdy scrub brush.
Spray the brick wall
Using the garden hose, spray the brick wall thoroughly. This helps get rid of clumps of dirt and dust and allows the brick to soak momentarily before the other products are used.
Scrub the wall with a bleach solution
Put your gloves and goggles on and grab your bucket. In the bucket, mix 1 cup of bleach with 1 gallon of water. Take your scrub brush and dampen it with this mixture. Use the brush to roughly scrub the brick wall. Work your way from the top of the wall to the bottom. If the brick seems to be drying out before you have a chance to work on it, you should quickly re-spray with water.
Rinse and wait
Make sure that there is no bleach residue left on your brick wall by giving it a thorough rinsing with the garden hose. Give the wall time to dry.