Normally, condensed water is pumped up to the water container where water is collected until manually emptied. Water can also be drained out directly to a mains drain, especially when the appliance is stacked on top of a washing machine. With the connecting elbow or T piece of the mains drain hose, simply change the water path and re-route to the drainage facility as below:
Separate the anti-backflow lid a and the water container hose b from the connecting elbow or T piece.

Attach the anti-backflow lid a to the head of the connecting elbow or T piece and then connect the optional drain hose c to the opposite side of the connecting elbow or T piece.

If the optional drain hose is installed in a way that leaves it bent or pinched, drainage may not function properly.