coolant leak

I've got a slight coolant leak that I've just been keeping an eye on for a little bit and filling my reservoir with water but I want to find a longer term fix that doesn't involve much hardware work since I don't have the money for that at the moment. But I was wondering if anyone has used Bar's...

Very excited - just picked up an '03 5.9 for the wifey at an auction. Body/interior looks amazingly clean for 191k. I'm not that experienced mechanically but learning and getting more confident doing stuff. Excuse any misterms here, No jack or stands to use currently. Working on the car...