Traditional car wash shops are a combination of a high-pressure water gun connected to tap water, a few large towels, and some detergents. This is the main equipment of many car wash shops. The car washing water was wasted seriously, and the circulating water car washing equipment in the car washing room became a display. A large amount of clean water was secretly used for car washing, and water-saving applications were not promoted. According to relevant statistics, according to this washing method, the country will consume 100 million tons every year.