WOW -one year on the same G tube. I'm on my fourth one in one year. Unfortunately if the leak is in the main G tube, yes, you need it replaced. In the meantime, regular black electrical tape will work very well to staunch the leak until you get it replaced (at least it did for me)
My CCC now has me on a four month replacement cycle for my G tube - of course I give it a workout with my Vitamix feedings.
Charm