Another issue that can cause water to leak from the bottom of a washer is a defective pump. Washers contain a pump that drives the water from the tub during the rinse and spin cycle. To determine if this is the issue, users should check the valves and the hose coming from the pump to ensure all seals are tight. If the leak is coming from a hose. The drain hose most commonly leaks from the connection between the pump and the back of the washer. If the washer is pushed too far against the wall, the hose can rub against the wall and form a leak. Inspect the drain hose for leaks. If the drain hose is leaking, replace it. If your Whirlpool washer is leaking from the bottom, check the pump. This is the most common cause for water underneath the cabinet. Stop the washing machine. Remove the water in the tub either with a bucket or shop vacuum. Remove the main housing panel, and examine the pump. Check the pump housing and the hoses that enter and exit the .