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  2. Water timer - Wikipedia

    en.wikipedia.org/wiki/Water_timer

    The electric pump is to be arranged to be turned on and off at regular intervals by the time switch to administer (fairly) precise and regular water quantities. [1] This approach, used frequently in DIY watering systems, allows financial savings as the water timer can be discarded. For high-end applications, water timers sometimes allow more ...

  3. Electrofusion welding - Wikipedia

    en.wikipedia.org/wiki/Electrofusion_Welding

    Constant voltage is typically used for high pressure pipelines such as mains gas and water. Fittings are fitted with a barcode specified to an ISO standard. Typically fittings will be welded at 39.5v, but manufacturers can choose voltages in whole numbers from 8 to 48v. The welding time is specified on the label in seconds or minutes

  4. Here are steps to take to keep your water pipes safe during ...

    www.aol.com/steps-keep-water-pipes-safe...

    The Shreveport Department of Water and Sewerage released tips on how to keep your house safe during the cold months. Check out these tips.

  5. Should I turn off water if pipes are frozen? How to keep ...

    www.aol.com/turn-off-water-pipes-frozen...

    What to do when water pipes freeze. Here are tips from The Red Cross. If you turn on a faucet and only a trickle comes out, suspect a frozen pipe. Likely places for frozen pipes include against ...

  6. Time switch - Wikipedia

    en.wikipedia.org/wiki/Time_switch

    The timer may switch equipment on, off, or both, at a preset time or times, after a preset interval, or cyclically. A countdown time switch switches power, usually off, after a preset time. A cyclical timer switches equipment both on and off at preset times over a period, then repeats the cycle; the period is usually 24 hours or 7 days.

  7. Trace heating - Wikipedia

    en.wikipedia.org/wiki/Trace_heating

    This thawing out is done on the three phase systems by using an 'auto transformer' to give a higher voltage, and consequently higher current, and make the trace heating elements a bit hotter. The boost system is usually on a timer and switches back to 'normal' after a period of time.

  8. Circulator pump - Wikipedia

    en.wikipedia.org/wiki/Circulator_pump

    Once the tap is shut off, the water remaining in the pipes cools producing the familiar wait for hot water the next time the tap is opened. By adding a circulator pump and constantly circulating a small amount of hot water through the pipes from the heater to the farthest fixture and back to the heater, the water in the pipes is always hot, and ...

  9. Pipe-in-pipe system - Wikipedia

    en.wikipedia.org/wiki/Pipe-in-pipe_system

    Internal pipes can be seen entering the external pipes in the bottom of the cabinet. In case of an internal leak, water will overflow through the external piping and can be detected inside the cabinet. A pipe-in-pipe system [1] is a form of plumbing where all water pipes are running inside another pipe. Its purpose is to ensure that any leaks ...

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