Is 20bar Water Pressure Enough for Car Washing?

[LeConnor]

20bar is not sufficient. Generally, the water pressure commonly found on the market ranges from 40 to 70bar, which is equivalent to 40 to 70 kilograms of pressure. Below is relevant information: 1. Precautions: 1MPA = 10bar = 10 kilograms. Under normal circumstances, the water pressure for car washing should not exceed 70bar, meaning it should not exceed 70 kilograms of force. The water pressure for car washing should also not be too low, as it won't clean effectively. Generally, the water pressure commonly found on the market ranges from 40 to 70bar, equivalent to 40 to 70 kilograms of pressure. 2. Principle: When the impact force of water is greater than the adhesion of dirt to the surface of an object, the high-pressure water will strip away and wash off the dirt, achieving the effect of cleaning the object's surface. In general, unless dealing with very stubborn oil stains, a small amount of detergent may be needed; otherwise, the foam generated by strong water pressure is sufficient to remove ordinary dirt.