Step 1. Pull out the dirty water tank.

Dirty water tank of the dock.

Step 2. Open the water tank and pour out the water.

Empty water on dirty water tank.

Step 3. Clean the water tank using tap water.

Wash dirty water tank.

Step 4. Wipe them with a dry cloth.

Dry dirty water tank.

Step 5. Reinstall onto the dock with a slight press for proper installation.

Dirty water tank re-installed.