This is the WaterBob, a single-use water reservoir that you can stick in your bathtub and fill with 100 gallons of water – and that can keep it fresh for up to four weeks.
For hurricane/cyclone prone areas it might be better. Let’s say you see on the news that a Katrina-sized storm front is heading your way. You would have enough forewarning to get it filled up. Assuming that all hell broke loose and your house was on high enough ground that it didn’t need to be evacuated, 100 gallons of clean water could be a life saver.
Source: uberreview.comAdded: 27 February 2012