Free water out of the air (Shutterstock)

Self-sufficient in 52 weeks (18) – Free water from the air

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March 25th, 2026

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Redactie

Every time it rains, something absurd happens: litres of free water fall on your roof… and simply disappear into the sewer. At the same time, you pay for water from the tap. You can remedy this to some extent by making useful use of rainwater.

This week’s task

Collect rainwater and use it. Simple. No installation costing hundreds of euros. No technical plans. Just get started.

With 10mm of rainfall, a roof surface of 100m² already yields 1,000 litres of water. That will get you quite far. You can store it to water your plants later, wash,…

More rainwater

🔗 READ. From rainwater to drinking water: how to do it

Choose a good water butt and a simple filter system to keep your rainwater clean. Naturally, fresh rainwater is free from chemical additives such as chlorine, fluoride or other treatment agents that we find in tap water.

However, it can pick up contaminants during its fall through the atmosphere and through contact with collection surfaces. It is always useful to test your collected water with a test kit.

🪖 Self-sufficient in 52 weeks

Every week a small, achievable tip that you can apply immediately. No expensive survival gadgets or unattainable scenarios, but practical steps with which you better prepare your family for power cuts, chaos or unexpected crises.

Follow the series and discover how in one year you grow from zero to completely prepared. 52 weeks, 52 tips – and you’ll be stronger than 90% of the people around you.

Discover all the tips here!

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