Hi, I need to clean my living room carpet again, last time I just cleaned around the furniture (quite a new carpet) but this time I want to do under the sofas. Can I move them, clean the carpet underneath then put themback and do the rest of the carpet or do I need to let the carpet dry first? Using a carpet cleaner version of the henry Hoover (cant remember what it's called) which leaves the carpet damp but not wet if you know what I mean. and the couch is leather with just a metal frame that touches the floor rather than the whole thing if that makes a difference?