The utility of the VR-12 is to avoid this type of damage in your car, if you do not use the VR-12 this information can be useful.
An easy way to diagnose and locate coolant leaks form hoses in your cooling system. And a rudimentary replacement of a radiator hose. As always this is how I replaced my hose and it should be done by a professional. I made sure the car and cooling system was cool before I attempted to work on the car. Safety is your number one priority.