I just ordered two cuben fiber dry bags from Mountain Laurel Designs. On their website they have a picture of one being used to carry water in, has anyone done this? I'm getting these to store my spare clothing in, but thought if I need to carry extra water from a source to camp this might not be a bad idea. Then I wouldn't have to carry a dedicated spare bladder for that purpose. I could also turn it inside out when collecting water so the inside would remain dry when returning my clothes to it.