 Our wash is more of a high-pressured wash with hot or cold water, with or without soaps or detergents. Generally applied for harder surfaces such as concrete, pavers, patios, driveways, granite, and heavy equipment. Now, a soft wash is basically a low-pressured cold water application that contains soaps and detergents not only to clean, but to rid your valuable property of all things moss, mold, mildew, and lichen. And, of course, eliminate your basic dirt, grime, and that yellow pollen. Ew, yucky.