👁️‍🗨️  Source /--> S1 - Rainwater.

👉🏼 ** https://www.emergency-wash.org/water/en/technologies/technology/Rain-Water**

https://www.emergency-wash.org/water/en/technologies/technology/Rain-Water

👁️‍🗨️  Source : GWN - GERMAN TOILET ORGANIZATION e.V. © : www.washnet.de

https://www.emergency-wash.org/water/en/technologies

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