How this node works
The drain must never be buried in the green: it is protected with a gravel ring and an inspection chamber, which prevents substrate and roots from clogging it and allows cleaning.
Key points
- Vegetation / substrate
- Gravel ring
- Inspection chamber
- Membrane into the drain
- Drain / downpipe
- Insulation
Conceptual, language-neutral drawing for study and orientation — not an execution drawing. Dimensions and verifications belong to the designer.