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2. 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.

3. Injector - Wikipedia

   en.wikipedia.org/wiki/Injector

   The S type pump is useful for removing water from a well or container. Shallow well pumps are those in which the jet assembly is attached directly to the main pump and are limited to a depth of approximately 5-8m to prevent cavitation. Deep well pumps are those in which the jet is located at the bottom of the well. The maximum depth for deep ...

4. Plug (sanitation) - Wikipedia

   en.wikipedia.org/wiki/Plug_(sanitation)

   A plug in sanitation is an object that is used to close a drainage outlet firmly. The insertion of a plug into a drainage outlet allows the container to be filled with water or other fluids. In contrast to screw on caps, plugs are pushed into the hole and are not put over the hole.

5. Sewage pumping - Wikipedia

   en.wikipedia.org/wiki/Sewage_pumping

   KOS+ M openwell submersible pump. Small-scale sewage pumping is normally done by a submersible pump.. This became popular in the early 1960s, when a guide rail system was developed to lift the submersible pump out of the pump station for repair, and ended the dirty and sometimes dangerous task of sending people into the sewage or wet pit. [1]

6. Plunger - Wikipedia

   en.wikipedia.org/wiki/Plunger

   For the common plunger, the cup is pushed down against the drain opening, either pressing hard into the drain to force air in or pushing down until the rubber cup is flattened. The cup is then pulled out, creating a vacuum to pull blockage material upward and dislodge waste or other material.

7. Drain (plumbing) - Wikipedia

   en.wikipedia.org/wiki/Drain_(plumbing)

   A drain cover is a cover with holes (e.g. a manhole) or a grating used to cover a drain, to prevent unwanted entry of foreign objects, or injury to people or animals. It allows drainage of liquids but prevents entry from large solid objects, and thus acts as a coarse filter. A sink drain cover is a drain cover used to cover the sink drain.

8. Effluent sewer - Wikipedia

   en.wikipedia.org/wiki/Effluent_sewer

   Effluent sewer systems, as well as all sewer systems, can use two methods to transport wastewater to a treatment facility. These methods are gravity and pumping, also called pressure systems. Gravity systems use pipes that are laid on a slight downhill slope to transport wastewater. Effluent pumping systems have pipes that are buried at a ...

9. Well drainage - Wikipedia

   en.wikipedia.org/wiki/Well_drainage

   where Q = safe well discharge - i.e. the steady state discharge at which no overdraught or groundwater depletion occurs - (m 3 /day), K = uniform hydraulic conductivity of the soil (m/day), D = depth below soil surface, = depth of the bottom of the well equal to the depth of the impermeable base (m), = depth of the watertable midway between the ...