Category Archives : wash4all

News and updates from the wash4all team.


In the past few weeks, we have made some significant technological upgrades to our handheld turbidimeter. This product will soon be debuting on our brand new online store. Our circuit board has gone though two design iterations (using EAGLE) in effort to minimize size, and maximize organization and efficiency. Currently, the […]

Significant Upgrades to Handheld Turbidimeter!


Welcome back to our blog! New and exciting developments are underway, with more on the visible horizon. Our team was recently awarded the second phase of an EPA P3 Grant Award, contributing $90,000 dollars in project funding and giving us the financial resources to delve in a host of product improvements […]

Recipients of EPA P3 Grant








Hi Folks, Chris Kelley here. In July of 2012, I took a trip to Honduras to learn more about a type of gravity-driven, non-electric water treatment plant designed by members of the AguaClara program at Cornell University (headed by Dr. Monroe Weber-Shirk). Working with the Honduran development group Agua Para El Pueblo (APP), […]

Announcing the OpenSourceWater monitoring system


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Turbidity refers to the dirtiness or cloudiness of a water sample. Technicians at water treatment plants regularly measure water turbidity before and after treatment. It’s a legal requirement in many countries, and one indicator of whether treated water is safe for human consumption. The unaided eye can distinguish cloudy water […]

Open-source water quality testing: turbidity