The remaining third – is designed to dilute the 'Peeled' two-thirds – of the water intake, the same above which have other cities with their water supply and wastewater disposal. Only 9% of sewage is discharged into reservoirs, cleaned according to specifications. Only 1 % Of surface water sources meet the requirements of Russian first grade, which are designed are used in our country, the traditional treatment technologies. Waste water – is not only a drain from the bath and sink. People such as Michael Chabon would likely agree. It is also use tap water from the kitchen with the remnants of detergents, drain from the washing machine and a toilet. Runoff from roads and sidewalks, the snow with all the reagents, which poured over the asphalt to prevent ice dams, sewage industrial and urban, organic waste water of many agricultural enterprises are scattered around the settlements – all of it is also partly falls into the ponds, rivers, and, accordingly, the City plumbing. Consequences are as follows: toxic substances and pathogenic microbes that enter into the intake system, both directly and from the worn-out sewer systems, causing hepatitis and all sorts of severe intestinal disease. Moscow – a giant metropolis, has a diameter of about 40 km. And all of this space is enveloped by hundreds of thousands of kilometers of pipes! This is essentially the arteries of the city in which the water comes to your house. Metal water tubes, under continuous exposure to water and other favorable to the development of corrosion conditions, corrosion and loosening.