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  2. Grinder pump - Wikipedia

    en.wikipedia.org/wiki/Grinder_pump

    (The level sensing devices vary among grinder pump manufacturers.) If the pump malfunctions and the waste level in the holding tank rises above a certain level, the alarm panel should alert the homeowner that the pump is experiencing problems. The alarm panel should have both a buzzer and an indicator light.

  3. Float switch - Wikipedia

    en.wikipedia.org/wiki/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. Another common type is a float that raises a rod to actuate a microswitch.

  4. Pumping station - Wikipedia

    en.wikipedia.org/wiki/Pumping_station

    Pumping stations in sewage collection systems are normally designed to handle raw sewage that is fed from underground gravity pipelines (pipes that are sloped so that a liquid can flow in one direction under gravity). Sewage is fed into and stored in a pit, commonly known as a wet well. The well is equipped with electrical instrumentation to ...

  5. Septic tank - Wikipedia

    en.wikipedia.org/wiki/Septic_tank

    A septic tank is an underground chamber made of concrete, fiberglass, or plastic through which domestic wastewater flows for basic sewage treatment. [2] Settling and anaerobic digestion processes reduce solids and organics, but the treatment efficiency is only moderate (referred to as "primary treatment"). [ 2 ]

  6. Tank leak detection - Wikipedia

    en.wikipedia.org/wiki/Tank_leak_detection

    4a System based on fuel reconciliation (measurement of amount sold through the dispenser against the amount that goes out of the tank according to the tank gauge).Any discrepancies release an alarm. 4b Detection of tank leak in quiet periods (liquid level is changing while the tank is not dispensing fuel).

  7. Pressure sewer - Wikipedia

    en.wikipedia.org/wiki/Pressure_sewer

    Pressure sewers enable properties constructed below the nearest gravity main to connect to the local sewerage system avoiding the need for a septic tank or cesspit. [4]In areas where washouts or earthquakes are common, conventional earthenware or cast iron sewerage system may be prone to breakage and leakage.