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  2. Solar controller - Wikipedia

    en.wikipedia.org/wiki/Solar_controller

    The pump is usually switched on when the solar panel is hotter than the water in the store's heat exchanger and off when the panel is colder. Switching the pump on transfers the heat in the panel to the store. Switching it off when the panels cool prevents a reversal of the process and loss of heat from the store. The controller measures and ...

  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. Solar-powered pump - Wikipedia

    en.wikipedia.org/wiki/Solar-powered_pump

    A windpump replaced by a solar-powered pump at a water hole in the Augrabies Falls National Park. [Notes 1] This solar water pump up to 3.7 kW is useful for farmers.Solar-powered pumps run on electricity generated by photovoltaic (PV) panels or the radiated thermal energy available from collected sunlight as opposed to grid electricity- or diesel-run water pumps. [1]

  5. Solar water heating - Wikipedia

    en.wikipedia.org/wiki/Solar_water_heating

    Many systems are configured as drainback systems where the water drains into the pool when the water pump is switched off. The collector panels are usually mounted on a nearby roof, or ground-mounted on a tilted rack. Due to the low temperature difference between the air and the water, the panels are often formed collectors or unglazed flat ...

  6. Pumping station - Wikipedia

    en.wikipedia.org/wiki/Pumping_station

    Typically, water is channeled from a high-level reservoir to a low-level reservoir, through turbine generators that generate electricity. This is done when the station is required to generate power. During low-demand periods, such as overnight, the generators are reversed to become pumps that move the water back up to the top reservoir.

  7. Bishan MRT tunnel flooding - Wikipedia

    en.wikipedia.org/wiki/Bishan_MRT_tunnel_flooding

    These measures included installing more float switches and relocating pump control panels (used for manually activating the water pumps) to areas accessible to maintenance staff. [11] On 20 July 2018, SMRT was fined S$1.9 million by the LTA for this incident and another incident at Pasir Ris MRT station, which led to the deaths of two SMRT ...

  8. BMW recalls 2024: Check the list of models recalled this year

    www.aol.com/bmw-recalls-2024-check-list...

    BMW recalled certain 2024 XM vehicles because the tailgate panel may detach from the mounting structure due to improper adhesive bonding that occurred during manufacturing. ... on the water pump ...

  9. Pressure regulator - Wikipedia

    en.wikipedia.org/wiki/Pressure_regulator

    For recreational vehicles with plumbing, a pressure regulator is required to reduce the pressure of an external water supply connected to the vehicle plumbing, as the supply may be a much higher elevation than the campground, and water pressure depends on the height of the water column. Without a pressure regulator, the intense pressure ...

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