Dry-solvent based or carbonated or non-carbonated water-based
carrier is sprayed onto pad and the carpet. The pads can be square or round and may contain fabrics such as cotton, rayon, synthetics or any combination. Instead of spraying, the pad can be dipped in a bucket of cleaning solution. During the agitation (spin buffing/oscillating) phase, the
bonnet (pad) will attract and absorb the soil from the carpet. It is the job of the technician to monitor how dirty the pad is getting to replace or flip it as soil accumulates for maximum soil removal. A preconditioner may or may not be used prior to application.