Thanks to computer-aided design and unitized fiberglass construction, the EEE Aerator has the smoothest curved intake, volute and discharge passage of any aerator. EEE aerators have pumping flow rates 30% higher than the flow rates published by other aerator manufacturers. In one recent comparison, a 20 hp EEE aerator delivered 15,365 gallons per minute while a competitor's 20 hp unit pumped a mere 8,321 – proof that EEE units are highly efficient. And that means ultimate savings in operational costs as well. The natural curved intake bell-to volute-to discharge design of EEE aerators promotes the highest gallon per minute rating of any aerator on the market. The less efficient design of other aerators actually retards water flow and efficient oxygenation. The EEE diffuser is not only 150% to 400% heavier but also larger in diameter to eliminate spray-back that could freeze up and corrode the motor as in the case of most aerators.