Water is the main resource that the human being has to survive, this depends not only on the health and survival of people, is also an essential part of endless activities that take place every day to achieve a better quality of life, however, the problem of the vital resource is the risk of a global decline in sources of fresh water 97.5 per cent of the total number existing on the planet is salt water, while only the remaining 2.5% is fresh water, of which 79% is permanently in the polar and glacial ice, therefore it is not available for use. Liquid fresh water in the State, 20% is located in difficult to access aquifers for its level of depth that are, and only the remaining 1% is freshwater surface of easy access, this represents 0.025% of the water on the planet. The building construction is one of the activities which generate more waste, pollution, transformation of the environment and considerable energy use, since the beginning planning, lifecycle, and demolition. The implementation to collecting systems of rainwater during the process of building is a practice to generate the rational use of sweet water and contribute to solve the problem of scarcity without compromise the regulation parameters of the national Government.This work presents a technical and economic analysis of the utilization of rain water as an alternative to washing machines, cured concrete, health and brick cutter, proposing a hydraulic system for the uptake and utilization of water rain; Three main objectives is working to confirm the viability of the project, such as - set design for the system of collecting, storage and distribution of water rain - establish the disadvantages and advantages of the hydraulic system implemented in situ construction and - determine the costs of implementation and maintenance of the system for reusing. The research on precipitation submitted per year focusing, in Bogota City different locations, is developed to determine the months in which major and minor rainfall levels are presented to so focus on the viability of the system of recruitment and utilization of rainwater in different works distributed in the towns of the capital.