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Most Carpet Steam Cleaning companies that use hot water extraction will rinse the carpet with a fiber rinse. Even with this extra step there's still a small percentage of residue left in the carpet. Any dirt that comes into contact with the carpet will be attracted to the sticky residue left in the carpet and this is referred to a process called "rapid resoiling". Vacuuming the carpet will remove loose dirt but cannot remove the dirt that is attached to sticky residue left in the carpet.