There is no need to remove the bladder from the backpack. As long as the bladder and tubing is empty, it is acceptable as a carry-on. No need though to go extreme and try to remove every drop.
Originally Posted by
FliesWay2Much
I think you'll be OK. Based on the screeners I've observed, I don't think any of them need a Camel Pack for marathon training.
{snicker} Sorry, I found that pretty funny. {snicker}
Count me in as a non-marathon type.