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Comment by the user placing this notice: from http://www.meribah-ram-pump.com/downloads/Flyer-Waterfilter.pdf - have the copyright holders explicitly allowed its use under CC-BY-SA?
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Links

  • Biosand Filter
    • Clean Drinking Water
    • Easy to Use
    • Self contained Maintenance
    • For Everybody
    • No Following Costs
    • Reliable
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