A:Answer Hey Lori, Thank you for reaching out. There are a couple things that could cause this. First, check your PowerDash's Dirty Water Tank filter for clogs and clean as needed. Then, check for a blockage in the nozzle. You can detach the nozzel for cleaning by grabbing the top of it and pulling up on it. Lastly, check to see if the tanks are secure. If you are still having a problem with the suction, contact Hoover Support at https://www.hoover.com/contactus/ Thanks, Joseph - The Hoover Team