Used carbon steel self-priming centrifugal pump by Johnson Pump AB type FRES 40-170 W in Ex design. Pump has output from 5 m3/h at height 39 m up to 30 m3/h at height 15 m. Pump is driven by el motor 4 kW, 2900 rpm, 400/690 V, 50 hz, Ex II 2G design. Inlet and outlet has diameter 50 mm. Pump is equipped with stainless steel piping and valves, also rubber hoses. Mounted on stainless steel mobile cart.