First, let’s start by defining some terminology. A stain is what is left over after the spot that created it has been removed and cleaned. If red mud is tracked on a carpet, for example, the spot can be removed and cleaned. Once the dirt or mud has been cleaned the red color left behind is the stain. While a spot is a physical substance which rest upon a carpet, a stain is a chemical reaction that the substance has with the carpet and this stain cannot be removed with normal cleaning. After the spot has been cleaned, a professional cleaner can determine the best method and products for removing the stain.
When you have a spot (which can be cleaned), the offending substance is affected by gravity. Gravity pulls the soiling substance to the bottom of the carpet, and sometimes into the pad. When a professional One Call Carpet Cleaning comes into your home and cleans this spot using the hot water extraction method, commonly known as “steam cleaning,” he uses hot water to remove the substance from the surface. If he uses the right truck mounted equipment with powerful vacuum, he will also be able to remove up to 90% of the water he used to do the cleaning.
If a carpet has not been properly maintained through regular vacuuming and cleaning, excessive soiling may accumulate under the carpet backing and padding.So let’s assume that the spot is gone and the carpet looks great, right? Once in a while, as the remaining 10% of the cleaning water evaporates into the air, it can pull the spot back to the surface of the carpet through capillary action, also referred to as wicking. Once the leftover water has dried completely, the remaining soiling substance can reappear on the carpet as a spot.
Other than the inconvenience, this is not a bad thing! This natural phenomenon allows the hidden dirt and oil at the bottom of your carpet to be removed by a quick touch up or spot clean without the need to pull up the carpet. However, if the soiling is extensive, it may be better to clean the top and bottom of your carpet, along with the pad and the floor beneath.
Dry cleaning, Bonnet Cleaning, Chemdry methods
Now, the so called “dry” or low-moisture carpet cleaning methods such as Chem-Dry, claim that their method prevents wicking. It may be true that there is a lower risk of wicking since this method uses less water, but how do they remove the deep dirt? In truth, these methods can, at best, only remove a portion of the dirt on the surface of the carpet. And I don’t know about your, but I don’t want more chemicals added to our already polluted indoor environment?
But don’t take our word for it. Chances are that your carpet was manufactured by one of the largest mills in the world. Shaw, Mohawk and other well known manufacturers recommend “steam cleaning” and may void their warranty if others methods are used.