During the construction of the building, the artist Sancho Silva proposed the construction of a septic tank made of banana trees, a technique disseminated mainly in Brazil. Still taking advantage of the last rains of September and with the collaboration of agroforestry expert Helen Parks we planted the Banana Tree Sewage and took the opportunity to define the limits of the Mediateca plot with the planting of Mango, Lemon and Avocado trees.