Puzzi 8/1

Pre-vacuum soiled carpet with Karcher CV Upright vacuum cleaner 4 passes @ 1.8 ft/sec. Pre-spray carpet with Prochem Ultrapac Trafficlean Pre-Spray (6 ounces per gallon applied at 1.0g per 200sqft.). Agitate carpet pile with Gandigroom carpet rake. Allow 10 minutes dwell prior to cleaning with Puzzi 8/1 unit using hot water only for three wet cleaning passes and one dry at rate of 1.0 ft./sec