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GPSD – Gravity Pit Sand Desalinator

Hi, I’m Jeff.

Low-cost, scalable sand filtration system built with purpose, not profit. Clean water through passive, open-source design.

jean-francis-kuochJean-Francis Kuoch
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GPSD – Gravity Pit Sand Desalinator
Open-source, zero-energy water filtration system
Created by Jean-Francis Kuoch – Independent Researcher

GPSD (Gravity Pit Sand Desalinator) is a low-cost, scalable water purification concept using ultrafine sand and gravity-based trench systems.
Designed for drought-prone regions and off-grid use cases, it is entirely mechanical, field-deployable, and free of proprietary constraints.

🔍 Overview
No electricity
No pressurization
No patents
Just sand, slope, and purpose.
GPSD enables pre-filtration of seawater or contaminated sources before final purification by solar or membrane means.

☕ Support This Project
If this helped you or inspired a local build, feel free to tip:
https://ko-fi.com/jeanfranciskuoch

📜 License
This project is licensed under CC BY 4.0.
Use freely. Credit honestly. Improve boldly.

GPSD_Stage2_Enhancement_v1.0.pdf

Adobe Portable Document Format - 40.08 kB - 06/11/2025 at 09:30

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GPSD_Whitepaper_SurvivalGuide_v1.1.pdf

Adobe Portable Document Format - 47.25 kB - 06/11/2025 at 09:30

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GPSD_IndustrialScaling_Addendum_v1.0.pdf

Adobe Portable Document Format - 42.28 kB - 06/11/2025 at 09:30

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GPSD_SalinityReduction_And_SaltRecovery_v1.0.pdf

Adobe Portable Document Format - 40.02 kB - 06/11/2025 at 09:30

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GPSD_PressureScaling_Addendum_v1.0.pdf

Adobe Portable Document Format - 41.16 kB - 06/11/2025 at 09:30

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