Instead of watering the trees twice a day, Kéré came up with the following idea: placing traditional hand-made clay pots next to the trees, with drippers targeted directly to the roots. The clay pots prevent evaporation from taking place and only need to be filled once a week, giving the trees a small but constant supply of water. In this way, a simple yet effective method can make a positive impact on the lives of people in Gando.