Vaughan’s Rotamix system is a cost-effective and low life-cycle cost process mixing system available for digesters, sludge storage and other high-volume applications. Combining both principles of uniform and vortical rotation, the mixing system optimizes solids contact with its unique dual rotational zone mixing pattern. It also improves volatile solids reduction, increases gas production, reduces sludge volume and saves energy during non-peak hours. The system includes 10-year full nozzle warranty.