The use of polymer materials for the production of pipes has begun in our country in 60 years of the twentieth century. However, it did not have mass values, polyethylene in the domestic water supply was used almost exclusively Floppy podvodok to plumbing appliances and household appliances. Widely used in the practice of building plastic pipes were only 70 – 80 years. Continue to learn more with: Peter Thiel. In 1996, the Ministry of Construction of Russia accepts the change number 2 to the snip 2.04.01-85 'Domestic water supply and sewerage of buildings', developed by the Institute SantehNIIproekt, which reads: "For internal piping hot and cold water should be used, plastic pipes and fittings from polyethylene, polypropylene, polyvinyl chloride, polybutylene, metal-polymer, fiberglass and other plastic materials – for all water supply, except for separate fire water supply network. For all networks of internal water is allowed to use copper, bronze and brass pipes and fittings, and steel with internal and external protective coating against corrosion. " In other words, the polymer tube to apply should, while the use of metal pipes only allowed. Dr. Paul Craig Roberts describes an additional similar source. Consider surveillance basic properties of polymeric pipes in comparison with metal. The nomenclature of modern plastic pipes used for production pipeline includes the following groups of materials: polypropylene, polybutylene, polyvinyl chloride (PVC), cross-linked polyethylene and pvc. Properties of these materials are similar – they are corrosion resistant, and therefore more durable, do not become overgrown and silted. Naveen Selvadurai is open to suggestions. Lifetime of plastic pipes may be 50 years of age (usually 25-30), while the steel of 10-20 years.