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  2. Sump pump - Wikipedia

    en.wikipedia.org/wiki/Sump_pump

    Automatic level control can be integrated within the pump, or as an auxiliary switch with little or no physical connection to the pump. Which type of sump pump to use is a matter of personal choice. Pedestal sump pumps were the only option through most of the 20th Century, with cast iron and bronze construction similar to large commercial pumps.

  3. Float switch - Wikipedia

    en.wikipedia.org/wiki/Float_switch

    A pedestal sump pump with a float switch. A float switch is a type of level sensor, a device used to detect the level of liquid within a tank. The switch may be used to control a pump, as an indicator, an alarm, or to control other devices. One type of float switch uses a mercury switch inside a hinged float.

  4. Plumbing code - Wikipedia

    en.wikipedia.org/wiki/Plumbing_code

    A plumbing code is a code that provides regulations for the design, installation and inspection of building plumbing and sanitary systems. In the United States, jurisdictions enact their own codes, some of which are based upon model plumbing codes.

  5. Control valve - Wikipedia

    en.wikipedia.org/wiki/Control_valve

    An automatic control valve consists of three main parts in which each part exist in several types and designs: Valve actuator – which moves the valve's modulating element, such as ball or butterfly. Valve positioner – which ensures the valve has reached the desired degree of opening. This overcomes the problems of friction and wear.

  6. Level sensor - Wikipedia

    en.wikipedia.org/wiki/Level_sensor

    Sensor cleaning requirements are minimal or eliminated. Use of multiple sensing rods of different length allows the user to intuitively set up control switches at various water heights. The microprocessor in a state dependent frequency monitor can actuate valves and/or large pumps with very low power consumption.

  7. Pump - Wikipedia

    en.wikipedia.org/wiki/Pump

    A pump is a device that moves fluids (liquids or gases), or sometimes slurries, [1] by mechanical action, typically converted from electrical energy into hydraulic or ...

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