today we're going to learn the best way to clean them from national home improvement expert lou manfredini how are you joanne? >> i'm good. it's so good to see you. >> nice to see you, too. >> now, you own a hardware store? >> i do, in chicago, and you know what? carpeting is something i get asked about a lot. whether it's stains or replacement, and seeing what you just did is kind of disturbing. i mean, think about all that dirt that gets trapped inside the carpeting. we live on them, we lie on them, our pets are there, the babies are lying all over them. >> right, yep. >> i mean, if you think about your carpeting and all that living bacteria that you track in the house with your shoes, with the sneezes with the pet wheezes. >> you know, i gotta tell you, it makes you wonder-- how can a vacuum actually get all this deep-down dirt and grime? >> and you know what else? the technology in most carpet cleaners does the same thing. they start with extraction and then spray liquid on the surface, and then they spin a brush in one direction. >> so first they get the carpet wet, and then you gotta