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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. Composting toilet - Wikipedia

   en.wikipedia.org/wiki/Composting_toilet

   A composting toilet consists of two elements: a place to sit or squat and a collection/composting unit. [3] The composting unit consists of four main parts: [2] storage or composting chamber; a ventilation unit to ensure that the degradation process in the toilet is predominantly aerobic and to vent odorous gases

4. Plumbing fixture - Wikipedia

   en.wikipedia.org/wiki/Plumbing_fixture

   The most common plumbing fixtures are: Bathtubs; Bidets; Channel drains; Drinking fountains; Showers; Sinks; Tap (connections for water hoses) . Tapware - an industry term for that sub-category of plumbing fixtures consisting of tap valves, also called water taps (British English) or faucets (American English), and their accessories, such as water spouts and shower heads.

5. Heat recovery ventilation - Wikipedia

   en.wikipedia.org/wiki/Heat_recovery_ventilation

   Diagramatic operation of a thermal wheel Ljungström Air Preheater by Swedish engineer Fredrik Ljungström (1875–1964). A thermal wheel, also known as a rotary heat exchanger, or rotary air-to-air enthalpy wheel, energy recovery wheel, or heat recovery wheel, is a type of energy recovery heat exchanger positioned within the supply and exhaust air streams of air-handling units or rooftop ...

6. Passive cooling - Wikipedia

   en.wikipedia.org/wiki/Passive_cooling

   Passive cooling covers all natural processes and techniques of heat dissipation and modulation without the use of energy. [1] Some authors consider that minor and simple mechanical systems (e.g. pumps and economizers) can be integrated in passive cooling techniques, as long they are used to enhance the effectiveness of the natural cooling process. [7]

7. Window insulation film - Wikipedia

   en.wikipedia.org/wiki/Window_insulation_film

   A typical window insulation film kit, consisting of plastic shrink film (folded-up) and a roll of double-sided tape. One commonly used film is a heat-shrink plastic which is attached to the window frame using double-sided pressure-sensitive tape. A hair dryer is used to remove creases and improve optical clarity.

8. Pentagon Fails 7th Audit in a Row but Hopes To Pass by 2028 - AOL

   www.aol.com/news/pentagon-fails-7th-audit-row...

   Congress required all federal agencies to submit annual financial reports in 1990. The Pentagon finally got around to complying in 2018, and it still hasn't passed an audit.

9. Sterling Plumbing - Wikipedia

   en.wikipedia.org/wiki/Sterling_Plumbing

   Sterling Plumbing is the brand-name of a line of plumbing products manufactured by Kohler Co.The company designs and manufactures a diverse selection of product for the kitchen and bath, including faucets, toilets, sinks, whirlpool tubs, shower doors and bathroom accessories.