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  2. Plumber's snake - Wikipedia

    en.wikipedia.org/wiki/Plumber's_snake

    A plumber's snake or drain snake or drain auger 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. It is also sometimes called a toilet jack. A plumbers snake is often used by plumbers to clear a clogged drain pipe or sanitary sewer.

  3. Drain-waste-vent system - Wikipedia

    en.wikipedia.org/wiki/Drain-waste-vent_system

    A sewer pipe is normally at neutral air pressure compared to the surrounding atmosphere.When a column of waste water flows through a pipe, it compresses air ahead of it in the system, creating a positive pressure that must be released so it does not push back on the waste stream and downstream traps, slow drainage, and induce potential clogs.

  4. Sanitary sewer - Wikipedia

    en.wikipedia.org/wiki/Sanitary_sewer

    Vertical pipes, usually made of precast concrete, called manholes, connect the mains to the surface. Depending upon site application and use, these vertical pipes can be cylindrical, eccentric, or concentric. The manholes are used for access to the sewer pipes for inspection and maintenance, and as a means to vent sewer gases.

  5. Chemical drain cleaners - Wikipedia

    en.wikipedia.org/wiki/Chemical_drain_cleaners

    Acidic drain cleaners usually contain sulfuric acid at a high concentration which turns a piece of pH paper red and chars it instantly. Apart from grease and hair, an acidic drain cleaner containing sulfuric acid can be also used to dissolve tissue paper inside water pipes. Acidic drain cleaners usually contain sulfuric acid at high ...

  6. Plumbing - Wikipedia

    en.wikipedia.org/wiki/Plumbing

    Roman roofs used lead in conduits and drain pipes [14] and some were also covered with lead. Lead was also used for piping and for making baths. [15] 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.

  7. Sanitary manhole - Wikipedia

    en.wikipedia.org/wiki/Sanitary_manhole

    Sanitary manholes should be constructed at locations where there is a change from a simple straight sewer line. These include all junctions that combine multiple lines into one or split from one, bends, changing in elevation, changing in pipe size, and changing in pipe type.

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