Gravit’eau systems: an overview

Gravit’eau handwashing stations are one of the technologies that will be implemented as part of the hands4health project. These stations were developed by the Gravit’eau Association, FHNW, Tdh and Eawag, with the support of the Swiss Solidarity and the Humanitarian Innovation Fund.

In short, Gravit’eau are mobile handwashing stations equipped with an automatic water recycling system (gravity filter membrane) that enables up to 100 people to wash their hands per hour, using an average of 2 mL per wash. The water in the stations is changed once a month, and complex maintenance and cleaning is only required every 5-8 years. These handwashing stations are therefore especially suitable for locations with water shortages.

Gravit’eau in the field: Nigeria and Burkina Faso

Gravit’eau devices have been piloted in Nigeria and Burkina Faso. In Borno State, Nigeria, Tdh installed 7 Gravit’eau stations in Mafa camp and the central primary school, serving a total of 5’450 children (see video below). In Burkina Faso, Tdh conducted an on-site training with the local team on how to construct three different Gravit’eau handwashing systems to be used in HCFs (read more here).