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Having enough drinking water to survive an emergency situation should be top on everyone’s list.
FEMA suggests having about 2 weeks supply of drinking water on hand. That is a good amount, but for the long term you need other solutions.
Bottled water is probably the most obvious way to store water for emergencies. But the trouble with bottles is they take up too much room.
Another option is to fill up your tub. Having other solutions will increase your chances of survival.
I have done many posts on how to store rainwater over the years. However, not too many on how to store drinking water. This article on long term storage of drinking water is thorough and information-packed.
On average you’ll need one gallon of water per person per day. Half a gallon is used for drinking and the other half is used for hygiene.