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  2. Water supply network - Wikipedia

    en.wikipedia.org/wiki/Water_supply_network

    Developing sustainable water supply systems is a growing trend, because it serves people's long-term interests. [16] There are several ways to reuse and recycle the water, in order to achieve long-term sustainability, such as: Gray water re-use and treatment: gray water is wastewater coming from baths, showers, sinks and washbasins. If this ...

  3. Aerobic treatment system - Wikipedia

    en.wikipedia.org/wiki/Aerobic_treatment_system

    The aeration stage and the disinfecting stage are the primary differences from a traditional septic system; in fact, an aerobic treatment system can be used as a secondary treatment for septic tank effluent. [1] These stages increase the initial cost of the aerobic system, and also the maintenance requirements over the passive septic system.

  4. Brac Systems - Wikipedia

    en.wikipedia.org/wiki/Brac_Systems

    Brac was a company that specialized in the development of water saving products for both residential and commercial use. Brac Systems Inc. was founded by Dennis Yasar [1] in Montreal, Quebec, in February 2005. Brac Systems began with the development of the GRS greywater recycling systems in 2005.

  5. Interface control document - Wikipedia

    en.wikipedia.org/wiki/Interface_control_document

    An ICD is the umbrella document over the system interfaces; examples of what these interface specifications should describe include: The inputs and outputs of a single system, documented in individual SIRS (Software Interface Requirements Specifications) and HIRS (Hardware Interface Requirements Specifications) documents, would fall under "The Wikipedia Interface Control Document".

  6. Greywater - Wikipedia

    en.wikipedia.org/wiki/Greywater

    Left: greywater sample from an office building. Right: Same greywater after treatment in membrane bioreactor. Greywater (or grey water, sullage, also spelled gray water in the United States) refers to domestic wastewater generated in households or office buildings from streams without fecal contamination, i.e., all streams except for the wastewater from toilets.

  7. Water distribution system - Wikipedia

    en.wikipedia.org/wiki/Water_distribution_system

    An example of a water distribution system: a pumping station, a water tower, water mains, fire hydrants, and service lines [1] [2]. A water distribution system is a part of water supply network with components that carry potable water from a centralized treatment plant or wells to consumers to satisfy residential, commercial, industrial and fire fighting requirements.

  8. Drain-waste-vent system - Wikipedia

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

    In the U.S., every plumbing fixture must also be coupled to the system's vent piping. [1] Without a vent, negative pressure can slow the flow of water leaving the system, resulting in clogs, or cause siphonage to empty a trap. The high point of the vent system (the top of its "soil stack") must be open to the exterior at atmospheric pressure.

  9. N2 chart - Wikipedia

    en.wikipedia.org/wiki/N2_Chart

    N 2 chart example. [1] The N 2 chart or N 2 diagram (pronounced "en-two" or "en-squared") is a chart or diagram in the shape of a matrix, representing functional or physical interfaces between system elements. It is used to systematically identify, define, tabulate, design, and analyze functional and physical interfaces.