The "Quad Klean" - each area is covered a minimum of four times, if not more, with the flat washer/surface cleaner (similar to a floor buffer, High Pressure Water Nozzles spin at a high speed cleaning the areas below.) The concrete area is covered with a light detergent which breaks down the dirt. I then pressure wash the area with a flat washer/surface cleaner, which lifts the dirt from the concrete. Finally, the dirt is rinsed away.
A clean concrete area provides a startlingly impressive visual from the street, enhancing curb appeal and will brighten up the look of your house or business.