We just bought a condo and moved in recently. Before that, we steam vacuumed the bedroom carpet, going over it at least 5 times. The water was literally black the first two rounds... We thought we did enough but now after we moved in, the room still reeks! If I can describe it, it smells salty.... No idea what it is. The condo is 10 years old and probably just got it first steam vac. We don't know what to do now debating on renting steam vac again and moving all the furniture outside for another session of deep cleaning.