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 Why does the water over flow in the collection tank? Answer: Make sure the float is installed correctly. The widest part of the float should be on the bottom. Make sure the float is not stuck at the bottom. The float should freely move up and down. If you require additional assistance, please call BISSELL Consumer Services Toll free at 1-800-263-2535 Monday through Friday from 8 a.m. to 10 p.m. or Saturdays from 9 a.m. to 8 p.m. ET.