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2. Water supply network - Wikipedia

   en.wikipedia.org/wiki/Water_supply_network

   Developing sustainable water supply systems is a growing trend, because it serves people's long-term interests. [16] There are several ways to reuse and recycle the water, in order to achieve long-term sustainability, such as: Gray water re-use and treatment: gray water is wastewater coming from baths, showers, sinks and washbasins. If this ...

3. Drain-waste-vent system - Wikipedia

   en.wikipedia.org/wiki/Drain-waste-vent_system

   A sewer pipe is normally at neutral air pressure compared to the surrounding atmosphere.When a column of waste water flows through a pipe, it compresses air ahead of it in the system, creating a positive pressure that must be released so it does not push back on the waste stream and downstream traps, slow drainage, and induce potential clogs.

4. Water heat recycling - Wikipedia

   en.wikipedia.org/wiki/Water_heat_recycling

   Installation of a double-walled copper-on-copper heat exchanger in a vertical section of the master drain line in a Canadian home (2007) Water heat recycling (also known as drain water heat recovery, waste water heat recovery, greywater heat recovery, [citation needed] or sometimes shower water heat recovery [citation needed]) is the use of a heat exchanger to recover energy and reuse heat ...

5. Plumbing - Wikipedia

   en.wikipedia.org/wiki/Plumbing

   plumbing drainage venting; sewage systems and septic systems with or without hot water heat recycling and graywater recovery and treatment systems; Rainwater, surface, and subsurface water drainage; fuel gas piping; hydronics, i.e. heating and cooling systems using water to transport thermal energy, as in district heating systems, like for ...

6. Passive treatment system - Wikipedia

   en.wikipedia.org/wiki/Passive_treatment_system

   A hybrid system using Flowforms in a passive treatment pond, in Norway. There are many types of water treatment systems available for removing metals from acid mine drainage. Passive treatment systems are a relatively recent technology that involves using sulfate-reducing bacteria or limestone or both to neutralize acidity and precipitate metals.

7. Your Dish Drying Mat Is *Loaded* With Bacteria—Here ... - AOL

   www.aol.com/dish-drying-mat-loaded-bacteria...

   This mat—which can be paired with a dish drainer—has a lip that allows you to drain excess water into the sink as your dishes dry. It also has built-in antimicrobial protection to fight off ...

8. These Bath Mats Are Unsung Shower-Time Heroes - AOL

   www.aol.com/lifestyle/bath-mats-unsung-shower...

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9. AOL Mail

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   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!