Why not stop the 积水?

I guess is that the drain pipe of the dish washer is connected to the garbage disposal, and the pipe is too low. When the garbage disposal is filled up with water, then the water will go to the dish washer. Once you raise the pipe level, then the water should not go to the dish washer, and you you problem shold be solved. You may need add little more pipe to raise the pipe level. 拆掉洗碗机 is a very bad idea. What are you going to do with that big hole?!