In Appendix C, Section C101.1 allows for recycled gray water to be
used for flushing of toilets that are located in the same building as the gray water recycling systems. These recycling
systems can also be used for irrigation purposes when approved by the authority having jurisdiction. Appendix C includes
information regarding the installation, filtration, disinfection, drainage and identification of gray water recycling systems.
Gray water used in a gray water recycling system must be filtered and disinfected before it can be recycled for
flushing of toilets or irrigation as stated in Appendix C.
North Carolina has stringent greywater
regulations and only allows reuse of water if it is treated to the same standards that are required
for treating sewage water (Sheikh 2010).
Sheikh, Bahman. (2010). Whitepaper on Graywater. Retrieved Nov. 1, 2010 from
http://www.awwa.org/files/Resources/Waterwiser/references/PDFs/GraywaterFinal%20Report20
10.pdf.
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