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2. Greywater - Wikipedia

   en.wikipedia.org/wiki/Greywater

   Due to the limited treatment technology, the treated greywater still contains some chemicals and bacteria, so some safety issues should be observed when using the treated greywater around the home. [19] A clothes washer grey water system is sized to recycle the grey water of a one or two family home using the reclaimed water of a washing ...

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

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

   The state Court of Appeals on Monday found that members of the Swartzentruber Amish community in southeastern Minnesota don't need to install septic systems to dispose of “gray water,” which ...

4. Water supply network - Wikipedia

   en.wikipedia.org/wiki/Water_supply_network

   Gray water re-use and treatment: gray water is wastewater coming from baths, showers, sinks and washbasins. If this water is treated it can be used as a source of water for uses other than drinking. Depending on the type of gray water and its level of treatment, it can be re-used for irrigation and toilet flushing.

5. Rainwater tank - Wikipedia

   en.wikipedia.org/wiki/Rainwater_tank

   Large polyethylene rainwater tanks being installed. Most rainwater catchment tanks used throughout the world are composed of virgin polyethylene, a substance which in the US is both FDA and NSF approved for potable water storage. Other types of tanks used for rainwater storage include fiberglass, galvanized metal, stainless steel, and concrete.

6. How Much Does It Cost to Replace a Water Heater? - AOL

   www.aol.com/much-does-cost-replace-water...

   Gas water heaters cost between $600 and $2,700 to replace, for an average cost of about $1,650. Electric water heaters cost between $600 and $3,500 to replace, for an average cost of about $2,100 ...

7. 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 ...