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2. Greywater - Wikipedia

   en.wikipedia.org/wiki/Greywater

   Left: greywater sample from an office building. Right: Same greywater after treatment in membrane bioreactor. Greywater (or grey water, sullage, also spelled gray water in the United States) refers to domestic wastewater generated in households or office buildings from streams without fecal contamination, i.e., all streams except for the wastewater from toilets.

3. Green infrastructure - Wikipedia

   en.wikipedia.org/wiki/Green_infrastructure

   Blue infrastructure is commonly associated with green infrastructure in urban environments and may be referred to as "blue-green infrastructure" when being viewed in combination. Rivers, streams, ponds, and lakes may exist as natural features within cities, or be added to an urban environment as an aspect of its design.

4. What Is Gray Water — and How Can Using It Help Save ... - AOL

   www.aol.com/gray-water-using-help-save-174100610...

   You're using (and paying for) an average of 300 gallons of water every day. Save money and promote sustainability by putting gray water to use for you.

5. Drain-waste-vent system - Wikipedia

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

   For such drainage systems to work properly it is crucial that neutral air pressure be maintained within all lines, allowing free gravity flow of water and sewage down drains and through waste pipes. It is critical that a sufficient "pitch" (downward slope) be maintained throughout the drain pipes to keep liquids and entrained solids flowing ...

6. Dry well - Wikipedia

   en.wikipedia.org/wiki/Dry_well

   A dry well or drywell is an underground structure that disposes of unwanted water, most commonly surface runoff and stormwater, in some cases greywater or water used in a groundwater heat pump. It is a gravity-fed , vertical underground system that can capture surface water from impervious surfaces , then store and gradually infiltrate the ...

7. Sustainable drainage system - Wikipedia

   en.wikipedia.org/wiki/Sustainable_drainage_system

   Retention ponds such as this one in Dunfermline, Scotland, are considered components of a sustainable drainage system. Sustainable drainage systems (also known as SuDS, [1] SUDS, [2] [3] or sustainable urban drainage systems [4]) are a collection of water management practices that aim to align modern drainage systems with natural water processes and are part of a larger green infrastructure ...

8. My neighbor’s sump pump drains onto my property — now my yard ...

   www.aol.com/finance/neighbor-sump-pump-drains...

   Worse yet, if enough water from your neighbor's sump pump gets into your yard, and that water accumulates against the walls and foundation of your home, it could cause a slew of damages.

9. Religious freedom vs. 'gray water.' AP explains ruling ... - AOL

   www.aol.com/news/ap-explains-court-ruling-siding...

   They also offered an alternative used in more than a dozen other states that would allow them to funnel gray water from their homes by pipes to earthen basins filled with wood chips to filter ...