Water is both the most basic resource of life and an indispensable need for health. Protection and efficient management of water resources is very important for sustainable development. Organizations such as the United Nations World Water Council (UNCWW), the World Resources Institute (IWR) and the World Health Organization (WHO) indicate that there will be severe water shortages in 66 countries where 2/3 of the world population will live in 2050, signaling the global water crisis. Shell took an important step with the pilot implementation it carried out in the car wash units at 4 stations. The project is implemented in 4 stations in Istanbul. Thousands of vehicles can be washed without the need for additional water consumption by washing vehicles with the same water, which is a revolution in car washing. The same water can be reused by rehabilitating the dirty water that flows down while washing the car.