LibreWater is an open-source solar desalination hardware project focused on local water resilience. It develops systems that can be built, understood, repaired, and adapted locally.
Access to clean drinking water is increasingly fragile, while many technical systems remain proprietary, complex, and difficult to adapt to local conditions. LibreWater explores an open alternative where knowledge stays accessible and modifiable.
LibreWater favors robustness, repairability, material availability, and ease of fabrication over narrow optimization. Standardized components support reproducibility and local adaptation.
Acraea prototypes are modular solar still systems for desalination without electricity. Designs are intended to be manufacturable with simple tools and adaptable to different materials and methods.
LibreWater develops through iterative prototypes rather than fixed one-off releases. Each iteration is versioned and documented, including design files, build notes, and test results, so decisions remain traceable over time.
The project is actively evolving. Current focus includes repository clarity, contributor onboarding, documentation quality, and preparation of upcoming development milestones while prototype improvement continues in parallel.
LibreWater welcomes participation from designers, engineers, researchers, makers, and documentation contributors. Contributions can range from build feedback to technical design work and documentation improvements.
We thank Michael for his Solar Pura work, and Florian for his MED Prototype.
The list of contributors and supporters is endless. We are still thinking about the most appropriate way to give credit and give back in the best possible way.
One thing is certain: without the support of countless kind people from all over the world, this adventure would not have been possible. It has been your ideas, your feedback, and our shared time that made this project real.
This is the magic of Open Source Hardware: people joining together with collective intelligence.
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This design has not been tested extensively. It has to be regarded as not yet suitable for production of water for any case other than scientific research, operation without supervision by a skilled operator, or use in external environment.
Please be aware that building a water machine can be dangerous and requires full awareness of the risks involved. Blue Greece/LibreWater does not warrant for any contents of the manual and does not assume any risks whatsoever with regard to the contents of this manual or the machine assembled by you.
Blue Greece/LibreWater further does not warrant for and does not assume any risks whatsoever with regard to any parts of the machine contained in this manual which are provided by third parties. You need to have the necessary experience in handling the machinery required to build the machine described in this manual. Otherwise you should seek professional advice for building the machine.