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2. Plumbing - Wikipedia

   en.wikipedia.org/wiki/Plumbing

   PVC/CPVC – rigid plastic pipes similar to PVC drain pipes but with thicker walls to deal with municipal water pressure, introduced around 1970. PVC stands for polyvinyl chloride, and it has become a common replacement for metal piping. PVC should be used only for cold water, or for venting. CPVC can be used for hot and cold potable water supply.

3. Piping and plumbing fitting - Wikipedia

   en.wikipedia.org/wiki/Piping_and_plumbing_fitting

   Valves are available in several types, based on design and purpose: Gate, plug, or ball valves – Isolation; Globe valve – Throttling; Needle valve – Throttling, usually with high precision but low flow; Butterfly or diaphragm valves – Isolation and throttling; Check valve – Preventing reverse flow (non-return)

4. List of valves - Wikipedia

   en.wikipedia.org/wiki/List_of_valves

   Choke valve, Butterfly valve used to limit air intake in internal combustion engine. (Not to be confused with choke valves used in industrial flow control, above.) Clapper valve: a type of check valve used in the Siamese fire appliance to allow only one hose to be connected instead of two (the clapper valve blocks the other side from leaking out)

5. Check valve - Wikipedia

   en.wikipedia.org/wiki/Check_valve

   A check valve, non-return valve, reflux valve, retention valve, foot valve, or one-way valve is a valve that normally allows fluid (liquid or gas) to flow through it in only one direction. [1] Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. There are various ...

6. Trump says US subsidies to Canada make ‘no sense ... - AOL

   www.aol.com/trump-says-us-subsidies-canada...

   President-elect Trump continued trolling of Canada early Wednesday by slamming U.S. subsidies and again claiming that Canadians supposedly want to become the 51st U.S. state.

7. New Year's tradition to eat 12 grapes or black-eyed peas for luck

   www.aol.com/years-tradition-eat-12-grapes...

   3/4 cup all-purpose flour. 1/4 cup yellow cornmeal. 1/2 teaspoon baking soda. 1/4 teaspoon kosher salt. 3 tablespoons unsalted butter, cold and cut into cubes. 1/4 cup chopped scallions. 1/2 cup ...