Your question can be divided into two parts.
1, Wash the car: This is the main function, but generally the water pressure is low, which is not as good as the car wash shop (if you catch up with the car wash shop, the car wash shop will have no business), but ordinary dust washing is still ok.
2. Take a shower by yourself temporarily: Except for winter swimmers, it is suggested that it can be used as personal shower equipment temporarily when the temperature is above 25 degrees, but the nozzle needs to be fixed, otherwise it will lead to chaos, hehe.
I hope I can help you!