Did you commit the cardinal sin of scrubbing the stain off the front room carpet and ended up whitening the spot? This is a common problem that happens when people without the proper knowledge of the fabric quality or the kind of solvents one should use for cleaning stains. But then who would like to see that ugly spot of wine or some other hard grime spot? So, the best thing to do to remove not just hard stains but also the stench of pet urine or sweat is by going for professional carpet cleaning services in Simi Valley if you are in Simi Valley.