This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Sewerage system types. en schematic of the different types of sewerage systems The schematic was based on the schematics of BartvO see org org Note that mixed systems only relay waterfeaces directly to the surface water in case the system becomes oversaturated eg in case of extensive rain It does not relay waterfeaces to