Dirty Water Tank Assembly in Purple for Select BISSELL Carpet Cleaners, including PowerForce PowerBrush Pet XL Carpet Cleaner, series 3071. Follow these instructions to empty the Dirty Water Tank. Pull Dirty Water Tank up and away to remove. For quick empty: Pull the rubber tab (located in the middle of the tank) and tilt to pour. When closing the rubber tab, make sure all edges are sealed tight. For final clean and rinse: Unscrew the ring at the bottom of tank. Gently remove the float stack, rinse and return to the tank lining up the arrows locking into place. Return the ring and twist to lock. Clean the red filter below the Dirty Water Tank by wiping off any remaining dirt or debris. To replace Dirty Water Tank angle it by placing the bottom in first. Then, tilt it toward the machine and push it until it "clicks" into place. Dirty Water Tank Assembly - Purple - for Select Carpet Cleaners 1626482