You must thoroughly vacuum the carpets first (although I would assume you do this any way)
As mark says be careful about leaving a wet pad on the carpet and if you do rugs with it ( as I do) be especially careful.
Here's where I disagree with Mark, I use it every week on residential and find it fine, if you do a lot of 80/20 as I do it's fantastic, just takes practise and once you have cleaned Flotex with it you won't clean it any other way.
Clients love the fast drying times.
