In the case of urban preparedness, there are few tenants spoken of more often than food and water. Afterall, the 'Rules of Three' dominate much of this space. We know we need food, but we've got it. Shelter, no problem. Water, however, is just one of those areas that gets looked at topically, especially in an urban environment. But in the event of emergency - where there's a disruption to the water supply - how much is really enough? I mean, truly. Thankfully we're not the only ones asking that question.

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