... LIQUID PUMP pneumatic sump pumps TUOYUO AIR-POWERED LIQUID PUMP --------TWO WAY PUMP Being ... workable2, Air consumption mast be at least 0.5 m3/h. It match 0.4-0.7Mpa air compressor.3, ... When finishing, Shutting the air supply valve, dragging for the pump, ... 6.Using Point 1. Make sure the exhaust air hose fastened, avoid swinging in application.2, Dont disport ...