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Emergency Water Purification
Protocol to make non-potable water safe for human consumption after a natural disaster or grid failure.
Critical alert
DANGER: Clear water can still contain invisible pathogens. Always filter before disinfecting.
1
Coarse Filtration
Pass water through a clean cloth, bandana, or sand layer to remove sediment and floating particles.
Required gear
2
Boiling (Primary Method)
Bring water to a rolling boil for at least 1 full minute (3 minutes above 2,000 m / 6,500 ft elevation) to destroy bacteria and viruses.
3
Chemical Disinfection (Alternative)
If fire is unavailable, add 2 drops of unscented household bleach per liter of clear water. Mix well and wait 30 minutes before drinking.
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