The discussion about drainage came up after the parking lot was completed.
The drainage from the right-hand gutter is designed to flow across the parking lot and into the ditch on the left.
However, currently the ditch on the left is not connected to anything, and according to Misun, it is meant to seep underground.
This is a drainage channel.
The drain in the foreground is for rainwater. This water flows directly over the parking lot.
The pipe in the back is the pipe from the kitchen.
This flows under the concrete of the parking lot and into the ditch on the left.
The initial plan to install sewage manholes and drain the waste into infiltration pits had somehow disappeared.
I told them to connect at least the kitchen drain to a soaking pit.