We're having a bit of internal debate as to the benefits of using bump air to create large displacement bubbles in the spirit holding tank versus impeller blades. The tanks are 4,000L and conical. The theory is that the 'air' plate will thoroughly agitate any sediments are dense adjuncts (we also produce liqueurs, vodka, etc.). The science is that you are not introducing more air than, say, blasting the spirit through a a pump at 40PSI to the filling machine. Certain parties believe this method will deteriorate the whiskey so I'm calling on anyone with pros or cons to this method. Otherwise we'll have a different problem with the impeller blades not circulating the liquid in the tank's bottom. Thanks so much!