This video shows a professional carpet steam cleaning on restaurant carpet. The carpet is full of greese and dirt. The proper way to clean commercial carpet in a resturant takes a few steps. Preferred Carpet & Rug Cleaners cleans commercial carpet in a few steps when they are very dirty as the video shows. The first step is to vacuum the carpets. Next we pre-condition the carpets with a degreaser let the carpet cleaning spray dwell on the dirty carpet for 15 minutes and then we steam clean them with very hot water.