Water supply
Water supply is the basis of any settlement, and in all survival textbooks it is written that first of all it is necessary to provide yourself with clean drinking water. But survival is one thing, and the usual life in the bosom of civilization is a bit different. However, a civilization could not be so called if water supply and sewage system were not invented. Today it is difficult to even imagine life without these wonderful and, without a doubt, irreplaceable inventions of mankind. If we talk about the definition, the term water supply refers to the provision of water to its various consumers. Consumers can be both residents of houses and industrial facilities. It should be noted that all systems that provide water to consumers that exist today are centralized. This means that each of the systems provides the needs of a large number of consumers. The water supply uses natural water sources, that is, rivers and lakes. In general, sources such as groundwater or groundwater are best suited for meeting the needs of the population - they are elementary cleaner, since the earth is a wonderful filter. However, in large cities, where, due to population growth and the rapid development of industry, there is a great need for water, groundwater is not enough. Then ground sources are used. Water from them goes through the stages of collecting, cleaning and feeding to consumers. In large cities it is not enough and existing in the vicinity of terrestrial sources. In this case, the water in them is supplied from other regions. For example, supply pipes to Moscow stretch from the Volga for a distance of 130 kilometers. Hot water supply is one of the benefits of modern civilization. The device hot supply is quite simple: the water circulates in the pipes, passes through hot water boilers, in which it is heated, and then enters consumers. One boiler house can serve several houses, providing their residents with hot water and, in winter, also heating. Water entering residential buildings undergoes strict sanitization and sanitary control. Water that is "in the tap" is potable. At least, it was suitable when it left the reservoir. However, currently functioning water supply systems leave much to be desired, which can not but affect the state of the water. Passing dozens of kilometers of old pipes, the water absorbs all deposits and rust, becoming practically unfit for drinking. Today, everyone can make their life more comfortable, and water - a little cleaner by replacing water systems in their own home. escort service