Nerta's Active Diamond Demonstration Clean. Foam Active Diamond onto a cool, dry vehicle and then power wash it off. Power washing should be done from the bottom, upward. Otherwise, as seen here, you can use vertical sweeps working along the vehicle. Avoid rinsing off the soap from the top. The soap statically binds to dirt and grime, so blast it away while it's doing its job. A final top-to-bottom rinse will remove any residue. Chiefs is a touchless cleaning wholesaler. We supply soaps, special