There are spots, and then there are annoying spots that magically reappear even after you clean them. Theses bad boys can be a pain in the behind, but if you know how to clean them properly, you can stop their reappearing act.
One of the major causes of this problem is called “wicking.” Wicking happens when there’s a large amount of liquid that causes the spot. This could happen with urine, soda spills or any other spill with a large volume of liquid where the liquid saturates the carpet and gets to the backing of the carpet or through to the pad. Over time the liquid will make its way up to the top of the fibers, and voila, the stain reappears. If you have your carpets professionally cleaned, then this wicking problem is not very likely to happen.
Another major cause of reappearing spots is called residue spots. Residue spots are leftover residue that’s left from the spot itself or from the cleaning agent. This happens when oily residues occur, like with lotions, adhesive or from improper cleaning. It’s not quite visible on its own, but dirt and dust stick to the area, making it a visible spot that a vacuum can’t pick up. Use proper and aggressive spot cleaning techniques to get rid of residue spots.
Remember that most of these reappearing spots can be removed by professional carpet cleaners; however, if they are permanent, a legitimate carpet cleaning business will tell you up front that there’s a chance the spot will not be removed.