VEVOR Drain Cleaner Machine 50FT x 1/2 Inch, Sewer Snake Auger Manual Feed, 250W Electric Drain Cleaning Machine with 4 Cutters & Air-activated Foot Switch for 2" to 4" Pipes

The suggestion is to plug in the power and put the switch to the CCW position, press down with your foot to control the airbag to lift up immediately and repeat the operation several times until the spring wound in the drum is no longer wound.

You can use 110 volt power.