Water Storage
9 LITERS.72 HOURS.ONE PERSON.
The Rule of 3
The human body has hard limits.
Water is your second most urgent priority. Not food. Not comfort. Water.
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Why exactly 9 liters?
It's not an arbitrary number — it's the survival minimum.
Physical exertion, heat, or shock can double your body's water demand. We recommend a 12–15 L reserve per person as a safety buffer.
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The PET Bottle Strategy
The simplest, cheapest, and most reliable solution.
Hygiene
Factory-sealed water is sterile. Zero contamination risk as long as the bottle remains unopened.
Modularity
1.5–2 L bottles split easily across backpacks. If one breaks, you don't lose your entire supply.
Cost
9 liters of bottled water costs under €2. The best price-to-protection ratio of any solution.
Always buy still (non-carbonated) water. During stress and shock, CO₂ can irritate your stomach and worsen dehydration.
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Backup Solutions
When supplies run out or tap water is unsafe.
Mechanical Filter
Sawyer Squeeze / LifeStraw
Removes bacteria, protozoa, and microplastics. Works without chemicals — pure physical filtration through hollow fiber membranes. Ideal for natural sources (streams, rainwater).
Does not eliminate viruses — for urban flooding, combine with purification tablets.
Purification Tablets
Aquatabs / Micropur
Chlorine or iodine kills viruses and bacteria within 30 minutes. Lightweight, cheap, long shelf life. Your last line of defense.
No taste change at correct dosage. Does not remove physical particles.
Calculate exactly how much water your household needs
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