
Home · S01-01 · Water
Water
Storing, filtering and disinfecting water when the power and the tap are both gone
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Levels this guide covers
72 hours2 weeks3 months1 year+
In short
- Plan for at least 4 liters (about 1 US gallon) per person per day — drinking, cooking and basic hygiene.
- For 2 weeks that is about 56 liters (15 gal) per person — start with 3 days and build up.
- Strain cloudy water first, then boil or disinfect it.
- Water contaminated with chemicals or fuel cannot be made safe at home.
What's inside
- 01How Much Water You Really Need
- 02How to Store Water at Home
- 03Hidden Water in Your Home
- 04Boiling — the Safest Method
- 05Disinfecting with Bleach
- 06Water Filters: What, When and Why
- 07Rainwater and Water from Nature
- 08When a Crisis Lasts for Months
- 09Hygiene with Little Water
- 10The Most Common Mistakes
- 11Printable Checklist
Worksheets (appendices)
- AThe Water Is Off — What First?
- BPersonal Water Plan
- CLabels for Water Containers
- DWater Supply Log
- EEquipment by Priority
- FLocal Information Card
- GWorked Example — Apartment and House
Sources are listed on the last page of every guide.
A look inside


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