Larry,
I replaced the entire line. There are some tricks to this. If there is anyway you can tie a string around the line at the rear of the reefer and pull that through that will help. The line goes down into the area where the left drawer (under reefer is). There were two small nylon wire brackets holding in place. The other end is at the filter which is in the water pump area. We fed a stiff piece of wire down from under reefer then slid the new hose over the wire and pulled it thru. A bit of work, but now I have a new water line.
Let me know if I can help.
Dennis