Product review (5 stars): Verstile tool to deal with frozen water line
This little tool was able to not only unfreeze a water line in a refrigerator, but I was able to use it to vacuum out water of a toilet supply line, put in bucket, and after about 6 doses of hot water with subsequent removal of said water after a couple of mins, I was able to loosen an ice chunk which was not allowing the toilet to fill.  Ideally you never want to use this tool, but when you do, you'll be so glad that you bought it and it's handy in your tool box.