Hkoenig SWRC110 Manuel D'instructions page 15

2. Fill water tank with water
Take out rubber plug of water tank, fill it with water, and then put back the rubber plug tightly on
Its position in case of water leakage.
3. Fit water tank on the robot
Turnover the robot, fix the water tank on the robot bottom, make sure its bolts are firmly
Pressed into the fixing slots.