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2. Low-flow fixtures - Wikipedia

   en.wikipedia.org/wiki/Low-flow_fixtures

   Faucets that meet energy efficiency standards for WaterSense mustn’t use more than 1.5 gpm, a 32% decrease in flow rate over the federal requirement. [10] Reduced flow faucets often make use of flow restrictors or faucet aerators to reduce the flowrate of the water. Using a faucet with an aerator results in an average 42% reduction in water ...

3. Faucet aerator - Wikipedia

   en.wikipedia.org/wiki/Faucet_aerator

   When an aerator is added to the faucet (or fluid stream), there is a region of high pressure created behind the aerator. Because of the higher pressure behind the aerator and the low pressure in front of it (outside the faucet), due to Bernoulli's principle there is an increase in velocity of the fluid flow.

4. Pfister (firm) - Wikipedia

   en.wikipedia.org/wiki/Pfister_(firm)

   Pfister, called Price Pfister until 2010, is an American manufacturer of bathroom and lavatory faucets, shower systems, showerheads and accessories, kitchen faucets and other plumbing fixtures. Emil Price and William Pfister founded the company in 1910. Today, Pfister is owned by Assa Abloy.

5. Tap (valve) - Wikipedia

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

   Its rate is independent of the viscosity or temperature of the fluid or gas in the pipe, and depends only weakly on the supply pressure, so that flow rate is stable at a given setting. At intermediate flow settings the pressure at the valve restriction drops nearly to zero from the Venturi effect ; in water taps, this causes the water to boil ...

6. Pfister form - Wikipedia

   en.wikipedia.org/wiki/Pfister_form

   The associated Pfister form φ is determined up to isomorphism by σ. Every anisotropic form of dimension 3 is a Pfister neighbor; an anisotropic form of dimension 4 is a Pfister neighbor if and only if its discriminant in F * /(F *) 2 is trivial. [10] A field F has the property that every 5-dimensional anisotropic form over F is a Pfister ...