If necessary, cut hose A to the right length at the straight end. The notched end should touch the bottom of the container (1). Take the short straight hose and insert the end you have just cut into the pump from below (2). Connect hose B to the hand pump and secure with the clip (3). Insert the yellow end piece (inch thread) into the hose (4). The end piece can be adjusted to metric threads using the adapter (5). Screw the pump onto the container and open the pump lever.Hold the roughly corrugated part (6) and turn the pump lever counterclockwise until it flips up (7).The pump is now ready to use.