Hello, I am a design student from Auburn University. We are currently working with Emerson tool company (the makers of Ridgid wet/dry vacs) in redesigning the vac. I stumbled upon this forum to look for research on what users commonly find wrong with current models. So far the information I have received has been invaluable. Thank you. If you own a Ridgid wet/dry vac and have some free time please list any problems you have with its user functions. Any additional ideas on improving existing wet/dry vacs would also be very welcomed. Either reply on this post or feel free to email me at - email@example.com.