1. Prepare empty barrels, water pipes and water valves, and move the Black Hawk coffee machine to a position convenient for water supply.

2. Connect one end of the water pipe to the water valve, and then insert the other end into bottled water.

3. Open the water valve, adjust the flow rate, and adjust the water flow to an appropriate speed.

4. Insert the other end of the water pipe into the water tank of the Black Hawk coffee machine to ensure that the socket is tight and leak-free.

5. Check again whether all joints are well sealed without leakage or looseness.