Question: Hey Captain Car Wash, I’m seeing a lot of the newer car washes installing belt systems instead of the over under chain conveyor systems. Which is better? What are the differences? Expert: To help answer this question, we turned to Bill Barber, founder and president of WashLinks in Mississauga, Ont. Advertisement - article continues below Bill Barber, WashLinks CCW: If someone is building a wash, should a new investor be aiming to install a belt over a conveyor?