FAQ Search Select a Category Cleaning Formulas Cleaning Tips Corporate Deep Cleaners FAQ Hard Floor Cleaners Parts and Accessories Steam Sweepers Vacuums Warranty Web Site and/or go My ProHeat 2X® leaves dirty water spots on the carpet. How can I fix this? Answer: To start, remove the front tank and the SmartMix® tank on the back of the cleaner. Next, tilt the cleaner backwards so it’s resting on its handle. Then, wipe all dirt, hair, and lint from the underside. Be sure to clean area between the brushes. Empty the dirty water tank and rinse it out. To get up the spots, re-clean the previously cleaned areas, working in small sections. Finally, set your cleaner to the Rinse setting and run over the soiled spots until only clean water is suctioned up.