The effluent from wine-making is treated by aeration stimulated by an integrated system of hydro injection in the reception pool.
This is a natural cleansing procedure recommended by the Adour-Garonne Water Agency (Public authority part of the Ministry for Ecology and Sustainable Development )
Adour-Garonne Water Agency, consultation centre for the management, improvement and conservation of water in the regions of Adour, Garonne, Dordogne and the Charente.