You always have it as if by magic but when you dont, you see the light.
Water must be the most underestimated survival supply. Store as much as you can. FULL CONTANIERS PLEASE! You dont get a SHTF notice. Ever. So an empty container of any kind is just that.
Notice in the article below how important it is to know how to treat water and have the nescesary tools and knowledge.
Pool shock as a long term water purification supply, but most of all a good water filter such as the Berkey, sold by our sponsor, Directive 21.
Notice how things are rarely black and white. If lukcy, you'll have some sort of water, but you'll need to treat it well.