Filtered beer flows from the final filters to the Bright Beer Tanks where it is held under a carbon dioxide (CO2) atmosphere. The beer is then pumped to the fillers through a distribution manifold. Product is chased from the pipelines with deaerated water.

As the tanks are filled and emptied, the CO2 blanket is displaced, recovered in the CO2 Pressure Balance Tank and returned to the tanks. This maintains the proper blanket composition and pressure. Should more gas be required than available in the balance tank, additional CO2 is fed to the system. Pressure relief controls prevent overpressure.

When not in service with product, the pipelines are filled with deaerated water. Use of deaerated water for chasing and holding the pipelines prevents air from entering and contacting the product.