Rubber Dirty Water Tank Plug for the Pet Stain Eraser Cordless Portable Carpet Cleaner. Series 2002, 2003, 2054. Ensure the unit is OFF and set upright on a flat surface. Simply push up on the release button located on the top of the tank to remove. Carefully remove the dirty water tank from the unit and carry to the sink. To prevent spills, hold the tank vertically after removing. To empty pull tab at the end of the tank and empty to remove the dirty water. Rinse out the dirty tank with clean water after emptying. Clean the tank plug and return tank to the unit. Ensure the tank is secure before use. Dirty Tank Plug for Pet Stain Eraser Portable Cleaner 1611735