How to use 1. Pre-treatment In case of high traffic carpet areas and heavily soiled areas we recommend using the tuba clean pre-cleaner. For the special treatment of very tenacious please apply the tuba clean pre-spotter. 2. Basic cleaning The basic cleaning is actually easier than you might think. 3. Impregnation The tuba clean intensive impregnating agent prevents from immediate resoiling and makes you enjoy your clean carpet for longer time.