I have an old Kitchenaid dishwasher. Removed bottom panel and floor is dry - no problems down there. There is a cut in door gasket up higher but no leakage during wash cycle. When drain cycle begins, water comes out the bottom of the door and all over the floor. So no leaks when water is spraying and lots of leaks when water is being removed. Seems really backward to me. What do I need to look at fixing?