How do I replace the lower radiatior hose on a 95 Saturn SC1?

Where exactly is it leaking at?

Best to go get a cooling system pressure test done, this will help locate the exact position of the leak. Knowing this then we can advise further.

Just to add to this one if its leaking that bad you shouldnt need to do a pressure test to find a leak that big. The only place I have seen a leak on the radiator on those and its a common leak is just bellow the upper radiator hose the tank cracks right where the upper transmission cooler line goes on. Also if the water pump is leaking poor some water in the coolant bottle and look underneath and see if its leaking off the oil pan subframe area just bellow where the crank pulley area is. Let me know what you find.