The concern in relation to the wastefulness and losses of water comes in recent years growing of excellent form, and the world passes for a campaign of awareness on the importance and necessity of the valuation of the water. The inefficient use of the water means equipment of bigger capacity as, great tanks and immense flows. The new technologies readjust equipment, modify operations without the additional necessity of physical space. The measurement individualization of water can be defined as being the verification the technology of Individualization measurement (for commercial residential economy/); Carried through through hydrometer installed in the branch of feeding of each unit (DESO, 2005). ANA (2005) considers the survey of the pointer or index of consumption (IC), that it is the relation enters the consumed volume of water in one determined period, called historical period, I number and it of consuming agents in this period as form to evaluate the water consumption. For Toledo (2004), up to 2025, the industries will be responsible for 24% of the world-wide water consumption.
Around 2 billion tons of garbage/day they are shot in rivers, lakes and streams. The industries pour of 300 the 500 million tons of metals heavy and other dejections in waters. They is esteem that in 2025, it will have an increase of 50% in the consumption of water in the developing countries and of 18% in the developed countries. More than 2,2 million people die annually victims of illnesses related to the ingestion of contaminated water and the lack of sanitation. 50% of the population of the developing countries are displayed the improper water sources for the human consumption. One gives credit that the world has 12 today a thousand km3 of water poluda. This value is bigger of what the amount of existing water in the ten hidrogrficas basins of the world (TOLEDO, 2004).