(conduction). Following the book’s rigorous methods, he organized the community to build a system that would capture water from a distant mountain spring. He didn't just want a pipe; he wanted a system that followed the rules of hydraulics and public health. The project faced three major "chapters" of struggle: The Mountain's Path:

Water from the mountain wasn't pure enough. Mateo designed a small plant based on López Alegría’s sections on sedimentación desinfección

Mateo, a young engineer from the village, returned home carrying a worn, blue-covered book: Abastecimiento de Agua Potable