[Nancy1999]

I think the carpet guy is partially correct. I don't just spray on Nature's Miracle; I blot the urine spot, and spray with Natures Miracle, and blot again (by stepping on a towel) and spray again. After you blot most of the urine out, there is still protein in the in the urine that can't be touch by most cleaners. This protein is what causes the smell, and while other cleaners can mask the smell you need something that gets rid of the protein. That why the enzyme cleaners work; they contain a bacteria, that "eats" the protein. Urine is made of several things, but it is essentially sterile water that contains proteins, you get rid of the protein, and you are left with water.

He may not be familiar with enzyme cleaners, and think that they are just another type of shampoo, many of which are worthless.