I covered my living room with rugs. It is a medium gray color, but has so many dark spots and looks terrible. I've cleaned some patches with pine cleaner using a stiff bristle brush. For about 2 weeks the rugs looks clean, but then the spots return. I guess the only way I'll get it clean is to rent or buy a carpet cleaner machine which sucks up the dirty water. I don't expect to restore the carpet, just to get it much cleaner than it is.
Has anyone used one of these before? Do these really work? Will I need some special cleaning solvents? Do you have any idea of machine cost if I want to buy?