Water bladders taste horrible, are hard to clean, you can’t tell how much is in them without removing them from your pack, and they can pop in the wild - leaving you stranded. But, the tube is so convenient! Nalgene bottles are super durable, don’t taste bad, measure your cooking water easily, refill in creeks easily, are compatible with using a steri pen for filtration, and super easy to clean.
This video teaches you to get the best of both worlds. All you need is an old Nalgene bottle and hydration bladder tube (and a drill with a 3/8” bit)