Aplumber's snake ordrain snake ordrain auger is a slender, flexibleauger used to dislodge clogs inplumbing. The plumber's snake is often reserved for difficult clogs that cannot be loosened with aplunger. It is also sometimes called atoilet jack. A plumber's snake is often used byplumbers to clear a clogged drain pipe orsanitary sewer.
Plumber's snakes have a coiled (helix-shaped) metal wire with a broader gap between the coils at the terminal end. The operator turns acrank 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 orglass 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 cable rotates, it also flails against the interior walls of the pipe, scraping off minerals andoil.
Hand augers are useful for clearingsink andbathtub drains. They are unsuitable for sending throughflush toilets, because the wire might damage the bowl; also, flush toilets have relatively large drain channels in which the narrow snake can become tangled. (A1⁄4-inch cable, for example, should never be used in a drain with a calibre of more than two inches.)
The closet auger (named afterwater closet) feeds a relatively short auger through a hook-shaped length of metal tubing. The hook shape makes it easier to feed the auger into the toilet. A plastic or rubber boot on the end of the rigid tubing protects the finish of the visible porcelain. Since most toilet clogs occur in thetrap built into the bowl, the short cable is sufficient to break up or retrieve the majority of clogs.
Adrum auger is a motorized auger with modular blades designed for various gauges of pipe. A drum auger is powerful enough to cut through tree roots. Used unskillfully, they can also damageplastic pipework and evencopper tubing.
The Roto-Rooter is an electric auger invented in 1933 by Samuel Blanc, an American. His wife named the invention, because the cable and blades rotated as they cut through tree roots inside sewer pipe. Competing companies made imitations after Blanc's patent expired in 1953, but the namesake machine is manufactured by and for a US company called theRoto-Rooter Plumbing & Drain Service.
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