Potable water is a fundamental right for human beings, the UN established that Colombia should reach 85% of drinking water coverage at the rural sector in 2015, on basis the CEPAL measurements (Comision Economica para America Latina y el Caribe) made in 2011 actually this coverage it is around of 72%. The Applied Research Project contributes to this indicator by performing a low-cost sustainables system to be used in the homes of the villages in the south of the town of Fusagasuga and performs water purification by process that uses natural coagulants. The study includes analysis phases of the environment, defining a natural product as a coagulant, design, development and distribution of the systems to the community, which included operational monitoring. With the environment analysis, using information provided by utilities and reconnaissance study conducted by the research group the level of coverage that has drinking water in the study area is determined. For the definition of coagulant laboratory processes are performed to determine the appropriate organic material from 8 possibilities and optimizing usage parameters within the system. In the design and development phase the process for choosing the system components and their arrangement on the basis of economic and cultural dynamics of the region it is carried out, finally the results of its evaluation for delivered systems are showed. In the study, it is evidenced the increased level of coverage of drinking water in the near 10% average for the area analyzed, also is determined that the system has a cost of $141.616 (COP), an IRCA value of 2, a production of 1.5L/h with a mixture of aloe - dragon fruit as a natural coagulant. Likewise, operational evaluation system displays a consistent technical performance than expected results, however, its use does not occur in the community due to factors such as level of education, level of commitment to the project, community leadership and not monitored by the community with the procedures established by the research team.