The truck mount is your best choice because it provides heat and plenty of suction. There are four principles when it comes to carpet cleaning: Time, Temperature, Agitation, and Chemical.
refers to the amount of time you let the pre-spray sit on the carpet. Usually 10-15 minutes depending on how heavily soiled the fibers are.
refers to the temperature of the water that comes out of the truck mount. A truck mount will provide the highest temperature which will give you optimal results.
is archived either by using a wand or a rotary machine.
is the carpet pre-spray and the detergent. Some people will also add boosters to their detergent.