Otterbine’s experience in wastewater treatment for over 60 years is obvious in the performance and results delivered by their ultimate surface aeration unit the High Volume. The High Volume system provides over 3.3 lbs. of oxygen per horsepower hour, and pumping over 900GPM. The rugged construction of stainless and thermal plastics is best suited for the most extreme water quality problems and can be placed in as little as 40 inches of water. Otterbine surface and sub-surface units add powerful aeration to control and prevent algae growth, odor, fish kills, discoloration, and to improve hard-to-manage and fluctuating water bodies. Otterbine offers a full range of aeration systems from 1/4HP-10HP.