Used at the USTA National Campus, the Tread Blaster is uniquely designed to remove dirt and grit from you shoes without getting to tops of your shoes wet. Typically uses one quart of water per cleaning. Side towers prevent any significant over-spray that could wet shoes, clothing or legs. A necessity for all facilities with clay courts. East to install, no electricity needed, all you need is access to water and a 3/4" hose with a spigot that provides a pressure of 30 to 60 psi. May be attached to any solid, level surface, with included mounting plate. You'll be happy you made the investment.