Plumbing originated during ancient civilizations such as the Greek, Roman, Persian, Indian, and Chinese cities as they developed public baths and needed to provide potable water and wastewater removal, for larger numbers of people.6 Standardized earthen plumbing pipes with broad flanges making use of asphalt for preventing leakages appeared in the urban settlements of the Indus Valley Civilization by 2700 B.C.7 The Romans used lead pipe inscriptions to prevent water theft. Plumbing reached its early apex in ancient Rome, which saw the introduction of expansive systems of aqueducts, tile wastewater removal, and widespread use of lead pipes.With the Fall of Rome both water supply and sanitation stagnated?or regressed?for well over 1,000 years.
During this period, public health authorities began pressing for better waste disposal systems to be installed, to prevent or control epidemics of disease.Earlier, the waste disposal system had merely consisted of collecting waste and dumping it on the ground or into a river. Eventually the development of separate, underground water and sewage systems eliminated open sewage ditches and cesspools.Źródło: https://en.wikipedia.org/wiki/Plumbing
A plumber's snake is a slender, flexible auger used to dislodge clogs in plumbing.
The plumber's snake is often reserved for difficult clogs that cannot be loosened with a plunger.
The operator turns a crank to rotate the helix as it moves through the pipe. If the clog is caused by a dense, but shreddable obstacle, such as tree roots or glass wool, the auger might break it up enough to enable flow.A small, lightweight obstruction might be snagged or corkscrewed by the auger, enabling the operator to pull it away.
As the auger rotates, it also flails against the interior walls of the pipe, scraping off minerals and oil.