Reverse Osmosis Car Wash
A post from long ago, Reverse Osmosis Article June 05, comments a little about Reverse Osmosis for Car Wash.
Recently, some readers suggest we add the following lines to complete the thread.
When car washes were first introduced they used three things: soap to clean the car, water to rinse it off and towels to dry it.
This simplistic approach, Soap Rinse and Dry, can not be said for car washes any longer today. Changing technology and rigid customer demands, require car wash operaters to es now offer additional features and enhance their service.
One feature that continues to be in high demand is a spotless car.
Customers will pay extra to have a spot-free car, whether it is sold as an option at a full-service wash or turned on at the final rinse of a self-serve wash. Either way, the driver expects to pull away without a single spot on the car.
However, even though washing with soap and water removes debris off the car, using normal water for the final rinse leaves residue that forms spots because of the naturally occurring minerals in the water.
To avoid these deposits, it is important to have a spot-free rinse as the final step in a car wash. The only problem is figuring out how to consistently achieve this result.
This is where reverse osmosis steps in.
Reverse osmosis (RO) is used to remove these dissolved materials in the water. As normal rinse water drying on a car evaporates and goes into the atmosphere, anything that is not water (such as dissolved materials) will remain on the car. After the water is removed, the remaining material will leave a spot. By using RO in a car wash, it is possible to remove the unseen, non-water materials out of the final rinse water and eliminate those unsightly spots.
Source: (discontinued page) http://www.osmonics.com/products/Page758.htm