We use a custom made soft washing system comprised of cleaning solution tanks and "low pressure" pumps to clean and rinse at minimal pressures. There are no pressure washers used in our soft washing systems. Our cleaning solutions are comprised of mildew-cides, algae-cides, soaps, & surfactants. These solutions are mixed on-site and to the specific needs of the surface to be cleaned. First, the solutions are applied thoroughly to the surfaces targeted. Time is given for the solutions to kill your mold, mildew, algae and fungus deep at its roots. Then, we rinse your surfaces thoroughly with fresh water at garden hose pressures.