In this application, our pump control and metering valve is installed in a pit draining system in a step mine pit containing over 160 feet of water. Water is being pumped from the mine into a reclamation center that is 250 feet up an incline. This application involves highly corrosive fluids, requiring special materials, such as 316 stainless steel, motorized ball valves and our Model 170L high pressure, high-capacity filter to protect the pilot system.