WATER

we were dry camping no hook ups and my outside shower hose popped off. I lost all my water, we were gone at the time. my brother in law had this bladder that would hold 45 gal.we went about 5 mi. to a state park and filled it. it folded into a small bag about a foot square. has anyone seen one and know were I could get one. the b/l got his as a gift and doesn't know were it came from. lots of them on Goggle but mostly commercial type and expensive. this one looked like a small water bed for a child.
Jay D.