Trailer pressure washers tow behind a vehicle for transport to remote locations to spray jets of water to loosen and remove dirt, grime, rust, and other deposits from pavement, buildings, and equipment. Also known as trailer power washers, they enhance the cleaning power of detergents while reducing or eliminating the need to scrub surfaces. They have pneumatic tires for a smooth ride and a sturdy frame to support the pressure washer unit. These gas-powered pressure washers have a gasoline-fueled engine for consistent, all-day running power. They operate in areas without access to wired power and have no batteries to recharge or cords to manage. Their engine requires refueling, regular maintenance, and winterizing for storage.