G'day All, Not wanting to tread on anyones toes so to speak but the items being discussed here are not home made, there were 2 different types as fitted to the lhs rear door on a Ambulance, the larger one carried a plastic jerry can for water, the smaller version (as fitted to my bloodbox) who knows what it carried, I have heard tales about a small water container but i've never seen anything smaller than 20lt, 2 quart, waist bottles LOL anyway cheers Dennis
PS and yes I do agree that certain homemade items can make a difference in the field..