Fill a pressure washer with brick wash liquid, and spray the surface of the bricks using the pressure washer on medium-high. The power of the soapy water will scour the bricks, removing mud and peeling paint.
Soak a 6-inch wide paintbrush with paint thinner, then paint the thinner over the surface of the bricks. This will soften and dissolve the paint on the bricks.
Fill a 10 gallon bucket with hot water, 2 cups of brick wash and 1/2 cup of oil soap. Stir the mixture for two minutes with a paint stick to combine the ingredients completely.
Insert a wire brush into the soapy water, then scrub the brush over the surface of the bricks in small, circular motions. This will remove the loosened paint from the bricks.
Spray the bricks with the pressure washer set to low to wash away any residual cleaner.