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Prepper Water Calculator

How long will your stored water last?

This is based on a person that uses a total of 2 gallons of water per day. A general rule of thumb is to store 2 gallons per person per day for drinking, washing, cooking etc. Please note, your requirements might be higher or lower depending on many factors (pregnancy, activity, sodium input/output, weight etc) so please use this only as a reference tool and consult with a professional for your specific needs

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