Water Storage and Purification Basics
In most emergencies, water fails before food. Start with a conservative baseline and increase based on climate, activity, and household medical needs.
Storage Formula
Baseline: 1 gallon per person per day for at least 14 days. Include extra for children, pets, and hot weather locations.
Safe Container Rules
- Use food-grade containers designed for potable water.
- Label every container with fill date and rotation date.
- Store in a cool, dark location away from chemicals.
- Rotate according to local water quality and storage method.
Purification Options
| Method | Best Use | Notes |
|---|---|---|
| Boiling | Immediate disinfection | Reliable but requires fuel and cooling time. |
| Filter | Sediment and many pathogens | Use trusted filter specs and replace cartridges as required. |
| Chemical treatment | Backup treatment | Follow dosage directions exactly and observe wait time. |
Do not assume clear water is safe. Treat unknown sources before consumption.
Maintenance Cadence
Set a quarterly reminder to inspect containers, verify seals, and test your purification process from start to finish.
Sources
- CDC emergency water storage recommendations (accessed March 9, 2026).
- EPA household emergency preparedness resources (accessed March 9, 2026).
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