I am a little confused...
I am flying transatlantic with my 6 year old son, who was cleared for travelling and has a catheder for the next three weeks. Do I have to put liquid in the urine bag to not have air fill it or do I not have to worry about the bag at all ?..
QUOTE=MojaveFlyer;21089725]As I said above, though the leg bag is not at vacuum, it is such a small amount of air in it that the pressure differential is really not relevant.[/QUOTE]