Francesc Valentí i Teixidor
Known as the blacksmith of Sant Esteve de Llémena, his contribution in the improving of the hydraulic ram is well known across the valley and neighboring areas. Francesc Valentí made a number of changes in the hydraulic ram with the patented brand FV, and he managed to raise water to a height of 100 meters, only using the energy generated by the same water.
This device, made by hand, allowed many houses without electricity to have access to water. In the valley, you can still find farms that keep the hydraulic ram FV. It is believed that sold about 300 units, mainly in Girona, Garrotxa and the Empordà area, and some of them were exported to Bolivia.