| 摘要 |
A graywater recycling system having separate graywater and blackwater drain lines and a graywater flushing line connected to an upstream end of the blackwater drain line. The system is also provided with a subsurface graywater irrigation network with a graywater flushing line connected to the network. A rainwater collection system is in fluid communication with a graywater collection and distribution network. The system may be provided with a fire protection system in fluid communication with the graywater network and the rainwater system. Additionally, the separate graywater and blackwater piping may be run in a trench separator having a divider and closure lids.
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