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2. Powerhead (pump) - Wikipedia

   en.wikipedia.org/wiki/Powerhead_(pump)

   A switching or variable-voltage system (also known as a "wavemaker") is commonly used in reef aquaria to more closely simulate the movement of ocean water. [ 1 ] Water circulation is vital to proper biological filtration of most saltwater aquaria (particularly those using the Berlin Method ), and is useful in freshwater aquaria for allowing ...

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. Sump (aquarium) - Wikipedia

   en.wikipedia.org/wiki/Sump_(aquarium)

   A sump with three compartments including a protein skimmer. In fishkeeping, a sump is an accessory aquarium tank in which mechanical equipment is kept. [1] [2] A remote sump allows for a clutter-free display tank. It is found mainly in a reef aquarium or marine aquarium.

5. Aquarium filter - Wikipedia

   en.wikipedia.org/wiki/Aquarium_filter

   Prefiltered water is delivered to a perforated plate (drip plate). Prefiltering may take place in the aquarium via a foam block or sleeve in the overflow, or weir siphon, or it may be prefiltered by filter wool resting on the perforated plate. The waste laden water from the aquarium spreads over the drip plate, and rains down through a medium.

6. Sump pump - Wikipedia

   en.wikipedia.org/wiki/Sump_pump

   Since a sump basin may overflow if not pumped, a backup system is important for cases when the main power is out for prolonged periods of time, as during a severe storm. Some sump pumps can be automatically powered from a battery backup system, or a separate battery-powered system may be installed, typically with its float switch set slightly ...

7. Suspected illegal immigrant's fake bomb threat shuts down SC ...

   www.aol.com/news/suspected-illegal-immigrants...

   A suspected illegal immigrant was arrested in South Carolina after officials say he made a fake bomb threat during a traffic stop which ultimately led to a section of the I-85 being shut down for ...

8. Oldest stone tablet inscribed with Bible’s Ten Commandments ...

   www.aol.com/oldest-stone-tablet-inscribed-bible...

   The oldest known tablet inscribed with the Ten Commandments from the Old Testament sold on Wednesday for $5.04 million, more than double its high estimate. The stone, which dates back around 1,500 ...

9. Democratic governors discuss going on offense, playing ... - AOL

   www.aol.com/news/democratic-governors-discuss...

   As Democratic governors prepare to navigate and resist parts of President-elect Donald Trump's next administration, one told ABC News she is most alarmed by Trump's tariff plan. "Tariffs would be ...