To clean your Polar Monkeys Cold Plunge, you can simply drain the water and wipe down the interior with a clean cloth or sponge. It is also recommended to occasionally add a small amount of vinegar or baking soda to the water to help disinfect and deodorize the unit. To maintain your Polar Monkeys Cold Plunge, it is important to regularly check the water level and temperature, and to store the unit in a dry and cool place when not in use.