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Hey Chris it's Tony what happens is that coolant line like to expand and contract... The rubber part where the hose clamp is... Under pressure it can seep a little coolant... I wouldn't really worry about it unless it's dripping

 

You could try a different type of hose clamp. Also, I'd be careful about running the overflow tank empty. The radiator is supposed to be FULL with no air. The overflow tank gives extra coolant a place to go when it expands, and then it gets drawn back into the radiator when it cools. If the level in the tank drops over time, you're consuming coolant. Just keep an eye out for it. Looks like you've got the leak itself under control.