The Highwall Pump is designed to have the main frame / power pack situated on top of the highwall edge, with the wet-end lowered over the pit wall and into the water accumulation on the pit floor. The advantages of this pump format over conventional pit type pumps are:

Quick mobilization and demobilization with minimum labour requirements
The pump delivery hose is positioned in place with the wet-end
The bulk of the pump unit remains clear of mining operations
Eliminates the need for Pump Crew to work in the pit near the Highwall
Access to water accumulating in a pit being developed by dragline operation is achieved without hindering the operations

By incorporating a second (booster) pump unit to the Highwall Pump, performance is improved to 100L/sec @ 200m head TDH. The booster pump is hard plumbed into the outlet of the primary pump, allowing for simple and efficient transferring of water at high head.

By utilizing a single pump unit to lift to 200m, operating of a single engine, all complexities of setting up staging pumps, including manoeuvring of a second unit, connecting pipe work, balancing performance, and monitoring both units is eliminated.