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2. Water recycling shower - Wikipedia

   en.wikipedia.org/wiki/Water_recycling_shower

   The first recycling shower, operated by a hand pump, was patented in England in 1767 by the stove maker William Feetham. [1] This recycling shower used the pump to push the water into a basin above the user's head. To receive the water, the user pulled a chain to release the water from the basin.

3. Grinder pump - Wikipedia

   en.wikipedia.org/wiki/Grinder_pump

   A pump for household use is usually rated for 1 , 1.5, or 2 hp. A cutting mechanism macerates waste and grinds items that are not normally found in sewage, but may get flushed down the toilet. The pump has a level sensor either built into the pump, called “sensing bells”, or attached externally to the pump, typically a float switch. (The ...

4. Bathtub curve - Wikipedia

   en.wikipedia.org/wiki/Bathtub_curve

   The 'bathtub curve' hazard function (blue, upper solid line) is a combination of a decreasing hazard of early failure (red dotted line) and an increasing hazard of wear-out failure (yellow dotted line), plus some constant hazard of random failure (green, lower solid line).

5. Shower - Wikipedia

   en.wikipedia.org/wiki/Shower

   A shower head. A shower head is a perforated nozzle that distributes water over solid angle a focal point of use, generally overhead the bather. A shower uses less water than a full immersion in a bath. Some shower heads can be adjusted to spray different patterns of water, such as massage, gentle spray, strong spray, and intermittent pulse or ...

6. Hydraulic ram - Wikipedia

   en.wikipedia.org/wiki/Hydraulic_ram

   In the above example, if the energy efficiency is 70%, the water delivered will be 70% of 20%, i.e. 14%. Assuming a 2-to-1 supply-head-to-delivery-head ratio and 70% efficiency, the delivered water would be 70% of 50%, i.e. 35%. Very high ratios of delivery to supply head usually result in lowered energy efficiency.

7. Circulator pump - Wikipedia

   en.wikipedia.org/wiki/Circulator_pump

   Circulator pumps as used in hydronic systems are usually electrically powered centrifugal pumps. As used in homes, they are often small, sealed, and rated at a fraction of a horsepower , but in commercial applications they range in size up to many horsepower and the electric motor is usually separated from the pump body by some form of ...