Water
Water Security at Home
Water is the most time-critical gap. You can manage three weeks without food. You get three days without water. Kate started here, and most people should too.
What's your water priority?
3 questions. Kate will point you to the right solution.
What's your main water concern?
“I bought my gravity filter after a two-day burst pipe left us relying on bottled water. It cost me £189. That's the most useful £189 I've spent on this house.”
— Kate, SelfSufficientNow
Water Guides
Guide
Best Gravity Water Filter 2026: Berkey Alternatives, British Berkefeld, and Sawyer
Berkey went bankrupt in 2023. Kate's review of the best gravity water filters to replace it — British Berkefeld, Alexapure Pro, ProOne, and Sawyer compared.
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Best Gravity Water Filter USA 2026: Alexapure Pro, ProOne, and Berkey Alternatives
Berkey's US bankruptcy left a gap. Kate's review of the best gravity filters for American families — Alexapure Pro, ProOne Big+, and durable alternatives.
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How Much Water Should Your Family Store? The Real Calculation
Kate's no-nonsense calculation for family water storage. The 1 litre/day official guidance is dangerously low for emergencies. Here's what you actually need.
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How to Store Drinking Water Long-Term: Containers, Rotation, and What Kate Learned
How to store drinking water long-term at home — the right containers, rotation schedule, and mistakes Kate made in year one. For UK and US households.
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How to Store Drinking Water Long-Term: US Containers, Rotation, and What Kate Learned
How to store drinking water long-term in the USA — the right containers, rotation schedule, and mistakes to avoid. Adapted for American families and climates.
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Water Purification Methods Compared: Filters, Tablets, Boiling, and UV
Kate compares water purification methods for home emergencies — gravity filters, boiling, tablets, UV pens, and chemical treatment. What actually works.
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Rainwater Harvesting: What's Legal, What Works, and Is It Worth It?
Kate's guide to rainwater harvesting — what's legal in the UK and US, what equipment you actually need, and whether it's worth it for a suburban garden.
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Best Water Storage Containers: Barrels, Tanks, and Stackable Jugs Compared
Kate compares water storage containers — from 5-litre bottles to 250-litre tanks. What she uses and what she'd recommend for different household setups.
Read guide →Not sure which gap to close first?
The full quiz covers all five pillars — water, power, food, emergency planning, and warmth.
Take the Full Quiz