| Detergency |
The ability to clean or remove soil. Generally detergency is associated with the action of a cleaning agent such as soap, detergent, alkaline salt, or a combination. |
| Digital Control System |
Industrial computer that operates the functions of a car wash. |
| Dissolved Solids |
Fine particles of dirt and other debris in water not distinctly visible to the naked eye. |
| Drops |
For central vacuums, the hose extensions from a manifold. The number of drops determines the number of cars that can be vacuumed at one time. |
| Emulsification |
The dispersion or suspension of fine particles or globules of one or more liquids in another liquid. |
| Exterior Wash |
Car wash service that includes only a cleaning of the outside of the car. Often this refers to an unattended wash, where no detailing services are offered. |
| Extrusion |
The process of pushing a substance through a die to create a shape. |