30 Seconds Outdoor Cleaner original formula since 1977, cleans virtually anything outdoors. It' ideal for cleaning stains from algae, mold and mildew while washing away dirt and grime. Our product powerfully cleans composite and wood decks, gutters, lanais, pool cages, stucco, patio furniture, canvas awnings, vinyl fences, painted metal, boats, concrete, walks, fiberglass, and just about any and all outdoor surfaces. This concentrated formula mixes 1:1 with water and will clean up to 600 sq ft per bottle, depending on the level of staining and porosity of the surface. It's clean, when You want it clean! Save water, energy and time by skipping the pressure washer. 30 Seconds Outdoor Cleaner breaks down readily in the soil so it won't harm lawns and landscaping when used as directed.