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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. 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 ...

  4. Uniform Plumbing Code - Wikipedia

    en.wikipedia.org/wiki/Uniform_Plumbing_Code

    In 1884 Dr. Roger S. Tracy wrote "Hand-Book of Sanitary Information for Householders" which was published by D. Appleton and Company. The book contains "Facts and Suggestions about Ventilation, Drainage, Care of Contagious Diseases, Disinfection, Food, and Water". Dr. Tracy was the Sanitary Inspector of the New York City Health Department.

  5. Piping and plumbing fitting - Wikipedia

    en.wikipedia.org/wiki/Piping_and_plumbing_fitting

    Swiss Fittings is legally protected the German Brand "Pressfittings aus Edelstahl" in the USA. [32] Press fittings of some major brands carry a plastic slip [clarification needed] around the sleeves on each end of the fitting which falls off when the fitting has been compressed. This allows for a simple identification whether a press fitting ...

  6. Bureau of Agricultural and Fisheries Product Standards

    en.wikipedia.org/wiki/Bureau_of_Agricultural_and...

    The Philippines' Bureau of Agriculture and Fisheries Product Standards (Filipino: Kawanihan ng mga Pamantayan sa Produktong Pansaka at Pampangisdaan, abbreviated as BAFS), is an agency of the Philippine government under the Department of Agriculture responsible for setting and implementing standards for fresh primary and secondary processed agricultural and fishery products.

  7. Bureau of Soils and Water Management - Wikipedia

    en.wikipedia.org/wiki/Bureau_of_Soils_and_Water...

    The Philippines' Bureau of Soils and Water Management (Filipino: Kawanihan ng Pamamahala sa Lupa at Tubig, [1] abbreviated as BSWM), is an agency of the Philippine government under the Department of Agriculture responsible for advising and rendering assistance on matters relative to the utilization of soils and water as vital agricultural resources.

  8. Plumbing - Wikipedia

    en.wikipedia.org/wiki/Plumbing

    In addition to lengths of pipe or tubing, pipe fittings such as valves, elbows, tees, and unions. are used in plumbing systems. [40] Pipe and fittings are held in place with pipe hangers and strapping. Plumbing fixtures are exchangeable devices that use water and can be connected to a building's plumbing system. They are considered to be ...

  9. Sanitary engineering - Wikipedia

    en.wikipedia.org/wiki/Sanitary_engineering

    An example of a wastewater treatment system. Sanitary engineering, also known as public health engineering or wastewater engineering, is the application of engineering methods to improve sanitation of human communities, primarily by providing the removal and disposal of human waste, and in addition to the supply of safe potable water.