With pet stain & odor removal it is important that treatment occurs as soon as possible. Please read our spot removal article for the best tips on removing a spot. Remember, you don’t know what kind of dyes are utilized in your rugs and do not have the necessary knowledge to pick the right solutions, which may cause further damage, so only blot the stain and try to extract as much of the spot as possible. If the contaminating substance has not been diluted, neutralized and extracted, then as bacteria in the urine multiplies, the deposit becomes highly alkaline (smells like ammonia), and removes color from fibers. It’s the ammonia that causes the loss of color in rugs, not necessarily the presence of the yellow pigment in the urine itself. The loss of dyes caused by prolonged exposure to ammonia is another story entirely. Don’t make the mistake of thinking that the yellow color can be removed with a simple cleaning solution; rugs with pet stains will require specialized pet stain removal procedures which may include re-dyeing the spots affected. Balance is essential here. Treating the rug with the harshest chemicals possible when they’re not necessary will shorten the resiliency and lifespan of the rug’s fiber, bringing down the value of the rug along with it.