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2. 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.

3. Register (air and heating) - Wikipedia

   en.wikipedia.org/wiki/Register_(air_and_heating)

   An unlouvered wall register, which allows circulation of air from one floor to another. Registers vary in size with the heating and cooling requirements of the room. [5] If a register is too small, the HVAC system will need to push air through the ducts at a faster rate in order to achieve the desired heating or cooling.

4. Tap (valve) - Wikipedia

   en.wikipedia.org/wiki/Tap_(valve)

   Wall hydrant, same as "hosebibb". Tap generally refers to a keg or barrel tap, though also commonly refers to a faucet that supplies either hot or cold water and not both. [citation needed] It also appears as a descriptor in "tap water" (i.e. water purified for domestic use). A single temperature tap is commonly found in a commercial or public ...

5. Is It Safe to Use Expired Vitamins? The Truth About Vitamin ...

   www.aol.com/vitamins-expire-nutritionists-weigh...

   “Your pantry beats a steamy bathroom every time,” she adds. The bottom line. Most vitamins are considered safe for up to two years past their expiration date (unless they contain mold), but ...

6. Passive ventilation - Wikipedia

   en.wikipedia.org/wiki/Passive_ventilation

   The ventilation system of a regular earthship Dogtrot houses are designed to maximise natural ventilation. A roof turbine ventilator, colloquially known as a 'Whirly Bird' is an application of wind driven ventilation.

7. Mortgage and refinance rates for Dec. 30, 2024: Average ... - AOL

   www.aol.com/finance/mortgage-and-refinance-rates...

   Average mortgage rates open the New Year holiday week higher as of Monday, December 30, 2024, pushing the 30-year benchmark past 7.00% and to its highest levels since July.