Hot Water Extraction 2 Dry-cleaning 2.1 Dry compound 2.2 Encapsulation 2.3 Bonnet 2.4 Shampoo 2.5 Dry foam carpet cleaning 2.6 Vacuum wash 3 Household processes 3.1 Vacuum 3.2 Stain removal 3.3 Other 3.4 Misconceptions 4 References Hot Water Extraction Hot water extraction equipment may be a portable unit that plugs into an electrical outlet, or a truck mount carpet cleaner requiring long hoses from the truck or trailer. Truck mounted equipment may be used where electricity is unavailable (e.g. if electrical service was terminated). Truck mount carpet cleaning may be unsuited to premises distant from a driveway or road, and hoses may need to pass through windows to reach upper floors of a building. Hoses needed for truck mount and professional portable carpet cleaning may present an inconvenience or tripping hazard to users of hallways, and pets or children can escape through doors that must be left ajar for hoses. Heated or air conditioned air will also escape from buildings when doors are left open for hoses, potentially creating a significant waste of energy. Truck mounted carpet cleaning equipment minimizes noise in the room being cleaned, but truck mounted carpet cleaning equipment may cause noise and air pollution offensive to neighbors, and may violate anti-idling bylaws in some jurisdictions. However, truck-mounted cleaning is much faster than portable equipment, and extra heat and power can give faster drying times. For more details on this topic, see Hot water extraction.
Truck mounted carpet cleaning equipment minimizes noise in the room being cleaned, but truck mounted carpet cleaning equipment may cause noise and air pollution offensive to neighbors, and may violate anti-idling bylaws in some jurisdictions. However, truck-mounted cleaning is much faster than portable equipment, and extra heat and power can give faster drying times. A Rug Doctor rental carpet cleaning machine. A common process of hot water extraction  begins with preconditioning. Alkaline agents such as ammonia solution for synthetic carpets, or acidic solution (such as vinegar solution) for woolen carpets, are sprayed into the carpet, then agitated with a grooming brush or an automatic scrubbing machine. Next, a pressurized manual or automatic cleaning tool (such as a wand) passes over the surface to rinse out all pre-conditioner, residue, and particulates. If an alkaline detergent is used on a woolen fibre, use of an acetic acid solution will restore neutral fiber pH. The acid rinse thus neutralizes the alkaline residues, and can contribute to softening cleaned fabrics. The hot water extraction method is the preferred method of many carpet manufacturers. Extraction is, by far, the most important step in the hot water extraction process. Since the hot-water extraction method uses much more water than other methods like bonnet or shampoo cleaning, proper extraction and air flow are critical to avoid drying issues. Drying time may also be decreased by extra use of fans, air conditioning, and/or outdoor ventilation. Older surfaces, such as double jute-backed carpets and loose rugs with natural foundation yarns, could shrink after a wet treatment, leading to suppositions that wet-cleaning could also remove wrinkles. However, this notion is antiquated and this method could also occasionally tear seams or uproot strips. Newer carpets, such as with synthetic backing and foundation yarns, do not shrink, and they smooth easily; in such carpets, wrinkles indicate an underlying problem, such as adhesive, that may need a certified carpet inspector to determine. Wet-cleaning systems naturally require drying time, which may lead to concerns about very slow drying, the risk of discoloration returning during drying, and odors, bacteria, fungi, molds, and mildews. Carpet cleaning specialists try to find a balance between rapid drying (attributable to lower flow rate through the cleaning jets of a spray system) and the neeket wringer, then the bonnet is to wet. Its very important to change or turn the bonnet early, Bonnets can become filled with soil in just a couple hundred square feet. And once loaded with soil, the bonnet will not hold any more; instead, it simply moves the soil from one area to another. The overly wet bonnet also deposits residues that attract soils when they are dry, creating the need to clean more often. Its recommended for robust and not for high floor carpet, it swirls the floor. It distorts pile and grinds dirt deeper in carpet fiber also it has an abrasive effect. When there is a large amount of foreign material in the carpet, extraction with a wet process may be needed. Normally, the spin-bonnet method may not be as capable of sanitizing carpet fibers due to the lack of hot water, for this a spezial thermo machine is needed, here the buffing machine is equipped with a heating, to heat up the bonnet, but a post-cleaning application of an antimicrobial agent is used to make up for this. Compared to steam cleaning, the small amounts of water required with spin-bonnet carpet cleaning favor water-conservation considerations. It only cleans the top of the carpet 1/8 inch but its very fast for wide areas. But bonnet cleaning is not the best mechanism for completely removing the chemical that is pre-sprayed onto a carpet. Its recommended that only surfactant free or encapsulating products are used. On the other hand, the re-soiling is great. Shampoo Wet shampoo cleaning with rotary machines, followed by thorough wet vacuuming, was widespread until about the 1970s, but industry perception of shampoo cleaning changed with the advent of encapsulation. Hot-water extraction, also