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> Fallout 3
To save the humanity, you must start a water puryfier. A mythic quest, that will take you many days, and in the end cost you your verry life.
> Fallout 4
Water purifier?
Ceramic (2)
Cloth (2)
Copper (2)
Oil (2)
Rubber (5)
Steel (10)
Power (2)
Enjoy the water :D
Royper 
@LukeAlmighty And in Fallout 1 it was a water chip but just for your own vault
Water purifier?
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