Not certain if this is a good idea... I don't like to put anything but water in my camelbak bladder as other liquids, especially something with sugars, cause the bladder to get funky.

That said I have often transferred water from my bladder to someone elses bottle or Camelbak. All you do is remove the bite value (it slides off) and water flows freely. You can, if you don't want to remove the valve, hold the bag up high and squeeze the valve but trust me, that's ackward to do. Why don't you just lok for a boda (sp?) bag instead??? You know, the bag we all used to carry while skiing and carried "snowshoes"...