For water you can get those water purifing tablets that work pretty good. The only bad thing about them is they leave bad taste in your mouth, but i
dont think you have to worry about how your water tastes in sitx. Also they work alot faster then boiling.
You can also get a portable water purifier for around $100 if you want. I have never used them but i heard they work fine. And They are probably
better in a survival sitution because they would last longer.
And one final thing, for storing water I dont think you need anything special besides a clean container.

