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ATTACHMENT E <br />EXTRA CLEANING PERFORMANCE STANDARDS <br />I. CARPET CLEANING, EXTRACTION METHOD <br />Spot clean, vacuum, operate the extraction equipment, and revacuum all carpet in the <br />specified area. All vacuuming, both before and after cleaning shall be repeated until there <br />is no longer evidence of dry soil or cleaner residue in the carpet pile as determined by <br />examining the filter bag. All stained areas shall be treated with spot cleaning solution, <br />following the directions of the manufacturer. Spot cleaning shall be continued until as <br />much of the stain as possible has been removed. Areas, such as corners, which are <br />inaccessible to the equipment, shall be cleaned with manual scrubbing devices. After <br />cleaning and allowing sufficient drying time, vacuum the carpet following a pattern <br />which will give the carpet pile a uniform appearance. <br />A. HOT WATER EXTRACTION <br />Hot water extraction provides rapid soil emulsification since most of the cleaners <br />used for extraction are low foaming and non -corrosive. They penetrate into the <br />carpeting and loosen the soil for easy removal while extracting. The pH of the <br />detergent used should never exceed 10.5. <br />Extractor Specifications: <br />Use a self-contained hot water extractor with a minimum of one hundred <br />(100) psi water pressure through the injection nozzles, a reel -type soft <br />bristled agitation brush and a water lift of one hundred thirty (130) inches. <br />2. Equipment performance characteristics are critical to ensure effective and <br />complete extraction. <br />B. CARPET CLEANING CHEMICALS <br />Only approved carpet -cleaning chemicals will be used. Be sure that the chemical <br />manufacturer's recommendations and safety procedures are followed. Do not <br />exceed the recommended dilution ratios for any cleaning product. Chemicals <br />used should conform to all regulatory guidelines. <br />1. Spray Spotter (pH8.5 to 9.5) <br />Spray the area to be cleaned. Allow the spray eight (8) to ten (10) minutes <br />dwell time. Extract the sprayed area with hot water only. Note: do not <br />spray too large an area. If the spray is allowed to dry prior to extraction, it <br />will not be effective. <br />