Savgbst1@Ngineer the rules may be different for food grade products like that. Containment is just a waist high wall, you could put painted card stock around it and that would do. If you wanted, like I said, I doubt anyone would notice!
It looks really great. As a supervisor at a chemical plant, I immediately notice that there's no secondary containment around your holding vessels. Federal Law requires that there is enough containment around the vessels to contain the catastrophic release of at least one of them. They're also needs to be safety appliances such as eyewash stations and showers. I strongly doubt anyone else would ever notice but it's something you might consider adding. Or if not adding then advising purchasers to add. The secondary containment is nothing more then a wall around the bottom. You could create the eye wash station as a separate appliance that they can purchase