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2. Sanitary manhole - Wikipedia

   en.wikipedia.org/wiki/Sanitary_manhole

   Sanitary manholes should be constructed at locations where there is a change from a simple straight sewer line. These include all junctions that combine multiple lines into one or split from one, bends, changing in elevation, changing in pipe size, and changing in pipe type.

3. Toledo Zoo & Aquarium - Wikipedia

   en.wikipedia.org/wiki/Toledo_Zoo_&_Aquarium

   The Toledo Zoo & Aquarium, located in Toledo, Ohio is a member of the World Association of Zoos and Aquariums (WAZA), [6] and is accredited by the Association of Zoos and Aquariums (AZA). [7] The Toledo Zoo & Aquarium houses over 10,000 individual animals from 720 species and participates in around 80 species survival programs.

4. Manhole cover - Wikipedia

   en.wikipedia.org/wiki/Manhole_cover

   Manhole covers may also be made from glass-reinforced plastic or other composite material (especially in Europe, or where cover theft is of concern). Because of law restricting acceptable manual handling weights, Europe has seen a move towards lighter weight composite manhole cover materials, which also have the benefits of greater slip ...

5. Marine aquarium - Wikipedia

   en.wikipedia.org/wiki/Marine_aquarium

   Many marine aquariums include a sump, which is an external container connected to the main aquarium with a water pump. In most setups, the sump is located below the aquarium and is fed water from the main tank via an overflow. An overflow at its simplest is a round hole drilled towards the top of the tank, connected via tubing to an output ...

6. Airstone - Wikipedia

   en.wikipedia.org/wiki/Airstone

   A spherical airstone at the Osaka Aquarium alongside a trio of red stingray pups, Hemitrygon akajei. An airstone, also called an aquarium bubbler, is a piece of aquarium furniture, traditionally a piece of limewood or porous stone, whose purpose is to gradually diffuse air into the tank, eliminating the noise and large bubbles of conventional air filtration systems, and providing other ...

7. Aquarium - Wikipedia

   en.wikipedia.org/wiki/Aquarium

   The typical hobbyist aquarium includes a filtration system, an artificial lighting system, an air diffuser and pump, and a heater or chiller depending on the aquarium's inhabitants. Many aquaria incorporate a hood, containing the lights, to decrease evaporation and prevent fish from leaving the aquarium (and anything else from entering the ...

8. Free Online Games: Play board games, card games, casino ... - AOL

   www.aol.com/games

   Discover the best free online games at AOL.com - Play board, card, casino, puzzle and many more online games while chatting with others in real-time.

9. Lid - Wikipedia

   en.wikipedia.org/wiki/Lid

   A lid or cover is part of a container, and serves as the closure or seal, usually one that completely closes the object. Lids can be placed on small containers such as tubs as well as larger lids for open-head pails and drums. Some lids have a security strip or a tamper-evident band to hold the lid on securely until opening is desired or ...