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2. Water tank - Wikipedia

   en.wikipedia.org/wiki/Water_tank

   An elevated water tank, also known as a water tower, will create a pressure at the ground-level outlet of 1 kPa per 10.2 centimetres (4.0 in) or 1 psi per 2.31 feet (0.70 m) of elevation. Thus a tank elevated to 20 metres creates about 200 kPa and a tank elevated to 70 feet creates about 30 psi of discharge pressure, sufficient for most ...

3. Marine aquarium - Wikipedia

   en.wikipedia.org/wiki/Marine_aquarium

   The sump aids tank health by helping to oxygenate the water by increasing the amount of water/air surface area used for gas exchange. Some marine aquariums also include a refugium . Refugiums are small containers or aquariums that are hidden behind or beneath the main aquarium and connected to it via a water pump (often in a similar manner to a ...

4. Storage tank - Wikipedia

   en.wikipedia.org/wiki/Storage_tank

   A septic tank is part of a small-scale sewage treatment system often referred to as a septic system. Septic systems are commonly used to treat wastewater from homes and small businesses in rural and suburban areas. [9] It consists of the tank and a septic drain field. Waste water enters the tank where solids can settle and scum floats.

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   Discover the latest breaking news in the U.S. and around the world — politics, weather, entertainment, lifestyle, finance, sports and much more.

6. Rainwater tank - Wikipedia

   en.wikipedia.org/wiki/Rainwater_tank

   A rainwater catchment or collection (also known as "rainwater harvesting") system can yield 1,000 litres (260 US gal) of water from 1 cm (0.4 in) of rain on a 100 m 2 (1,100 sq ft) roof. Rainwater tanks are installed to make use of rain water for later use, reduce mains water use for economic or environmental reasons, and aid self-sufficiency.

7. Portable water tank - Wikipedia

   en.wikipedia.org/wiki/Portable_water_tank

   A portable water tank is a temporary collapsible tank designed for the reserve storage of water in firefighting, emergency relief, and military applications. These tanks can be either supported or unsupported. The supported tanks have a steel or aluminum frame and range in size from 600 to 5,000 US gallons (500 to 4,160 imp gal; 2,300 to 18,900 ...