Surely no one will argue that the very rapid development of modern technologies affected all areas of social activity and in the construction sector in particular. The same applies to the process of laying various communications, water supply and sewage systems. So, to replace metal pipes, which more recently were leaders in this industry more effective and modernized polyethylene pipes. And this is not surprising, since they have all the necessary characteristics and properties. Over time, polyethylene pipes almost completely replaced their imaginary competitors and that is why on the shelves of construction stores now less and less can be found once popular and very requested steel and cast -iron pipes.