The normal reason for returning stains is something alluded to as wicking. Wicking happens when the substance that was spilled on the carpet has soaked through into the backing of the carpet. Whenever you clean the stain, you are cleaning the outer layer of the carpet. However at that point the spill that is caught in the support or potentially underpad can be reabsorbed by the carpet and advance up the fiber strands, back to the surface-like going up the wick of a ligh. Learn the detailed guide.
Like this book? You can publish your book online for free in a few
minutes!