We cleaned the carpet with one of those bulky carpet cleaners and even used special pet soap stuff and we cleaned the carpet and there were a lot of pet stains from my dog. They were when she would have accidents as a puppy and they seemed to come up really well but a day or two later the carpet is still wet and the whole room smells really bad like urine. Im talking really bad. . . . its so bad its smelling up the whole house. How do I get rid of this smell????? It is driving all of us crazy! Any suggestions?