our refrigerator was leaking water and water dispenser wold not work although icemaker was....tuned off the water supply..and through trial and error finally found that the white plastic line that attaches to the water valve(?) has either broken or more likely chewed off my some mice that I caught mealier in the kitchen.....the line is broken very near the valve...can I just take off the back and stretch and attach back or is this a major problem....