Water-treatment backwash and reject discharge
Coordinate softener/filter/RO discharge with drainage, air gaps, septic system and manufacturer instructions without cross-connection.
VERT / GREEN = documenter/entretenir · JAUNE / YELLOW = vérifier avant travaux · ROUGE / RED = arrêter le DIY et faire valider.
What the professional checks
- Verify air gap/backflow and drainage
- Coordinate with septic system and manufacturer
Official sources
CNRC — Code national de la plomberie 2025RBQ — protection du réseau d’eau potableChecked: 2026-08-22
Related path
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