Jim Elsey is a mechanical engineer who has focused on rotating equipment design and applications for the military and several large OEMs for 43 years in most industrial markets around the world. Elsey is an active member of the American Society of Mechanical Engineers, the National Association of Corrosion Engineers and the American Society for Metals. He is the general manager for Summit Pump Inc. and the principal of MaDDog Pump Consultants LLC. Elsey may be reached at email@example.com.
Again, the overarching issue is more likely the system than the pump. The Hydraulic Institute and Pump Systems Matter offer great resources to assist in evaluating your pump and associated systems to first assess and determine the current efficiency and then to take steps to affect positive change. The desired outcome is to have the right pump of the right size and materials that is operated and maintained correctly.
A good example is the water pump in your car, which is designed for that specific application. Automotive water pumps are variable speed with a pump-friendly fluid on a closed system. The pump curve is expertly matched to the system curve so you can operate the pump for a long time with only minimal issues.
Optimizing Pumping Systems; Pump Systems Matter and Hydraulic Institute