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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. Fixture unit - Wikipedia

    en.wikipedia.org/wiki/Fixture_unit

    A Fixture Unit is not a flow rate unit but a design factor. A fixture unit is equal to 1 cubic foot (0.028 m 3) of water drained in a 1 + 1 ⁄ 4 inches (32 mm) diameter pipe over one minute. [2] One cubic foot of water is roughly 7.48 US gallons (28.3 L; 6.23 imp gal). A Fixture Unit is used in plumbing design for both water supply and waste ...

  4. Plumbing drawing - Wikipedia

    en.wikipedia.org/wiki/Plumbing_drawing

    A plumbing drawing, a type of technical drawing, shows the system of piping for fresh water going into the building and waste going out, both solid and liquid. It also includes fuel gas drawings. Mainly plumbing drawing consist of water supply system drawings, drainage system drawings, irrigation system drawings, storm water system drawings. In ...

  5. Water supply and sanitation in the Philippines - Wikipedia

    en.wikipedia.org/wiki/Water_supply_and...

    Agricultural water management in the Philippines is primarily focused on irrigation. The country has 3.126 million hectares of irrigable land, 50% (1.567 million hectares) of which already has irrigation facilities. 50% of irrigated areas are developed and operated by the government through the National Irrigation System (NIS). 36% is developed by the government and operated by irrigators ...

  6. Good Building Design and Construction in the Philippines

    en.wikipedia.org/wiki/Good_Building_Design_and...

    The Good Building Design and Construction in the Philippines is a handbook developed in cooperation with the German Technical Cooperation (GTZ), UNDP Regional Center in Bangkok, and the Secretariat of the United Nations International Strategy for Disaster Reduction. [1]

  7. Plumbing code - Wikipedia

    en.wikipedia.org/wiki/Plumbing_code

    A plumbing code is a code that provides regulations for the design, installation and inspection of building plumbing and sanitary systems. In the United States, jurisdictions enact their own codes, some of which are based upon model plumbing codes.

  8. Sanitary sewer - Wikipedia

    en.wikipedia.org/wiki/Sanitary_sewer

    In addition, because of the vast reduction in solid waste, a pumping system, rather than a gravity system, can be used to move the wastewater. The pipes have small diameters, typically 1.5 to 4 inches (4 to 10 cm). Because the waste stream is pressurized, they can be laid just below the ground surface along the land's contour. [citation needed]

  9. Department of Public Works and Highways - Wikipedia

    en.wikipedia.org/wiki/Department_of_Public_Works...

    The Department of Public Works and Highways (Filipino: Kagawaran ng mga Pagawain at Lansangang Bayan), abbreviated as DPWH, is the executive department of the Philippine government solely vested with the mandate to “be the State's engineering and construction arm” and, as such, “tasked to carry out the policy” of the State to “maintain an engineering and construction arm and ...