For the J/G tube it isnt something you can plan on your calendar. Sometimes I need to have mine changed at 6 weeks and once I went almost to 4 months without a change. Its a simple procedure done as outpatient with just a shot of lidocaine in the stomach. The shots is the worst part of the whole thing. Pay careful attention to the tube and flush it several times per day. When you see the tube become kind of kinky and slightly curled it would be nearing the end of its lifespan. If the cap doesnt close tightly and it becomes leaky then it will need to be changed also. When you think its almost time for a new one, call her gastro doc's office and explain its a J/G tube which wears out and it needs to be replaced. My gastro doc usually gets me scheduled for a swap within a few days.

Glad you have gotten her tube changed to the PEG. I personally like the J/G much better even though having it changed is a bit of a pain.