I am currently converting a very small barber shop to a very small commercial kitchen, in rural Colorado (unincorporated weld county). I am replacing the hair sink with a restaurant triple sink. There is storage on the wall behind where the sink will go, and if possible I would like to preserve that; but I’m not sure if code requires a backsplash behind the sink that is continuous/impervious that would essentially wall that off (and fyi, the electrical outlets and switches are being eliminated or moved). I cannot seem to find an answer about the backsplash! I’d love any opinions/ideas. Thank you!