Direct spray with water cannons
Many owners of the car wash the car, the first step will be to select the car wash with water cannons moment, then slowly scrub. It is wrong to drop! Because, after the car running for some time, the car will have a surface adhesion of dust or small particles. If, before the car wash without water to flush out these first, but directly with high-pressure water jet or directly rub with a rag, these dust particles will be in the paint surface do "friction movement", damage the body paint. As to the car's delicate skin with a brush, like brush child, the car can be imagined pain.