V39 · Specialized diagnostic

Water softener: brine, drainage and septic system

Connect actual hardness, regeneration, brine discharge, potable water and wastewater treatment before installation.

VERT / GREEN · JAUNE / YELLOW · ROUGE / RED triage

Hardness never measured
Test water before sizing or unnecessary regeneration.Discharge to septic system
Verify system type and provider/authority requirements.Improvised discharge/connection
Correct drainage, potable protection and discharge before use.Salt use tracked
Track drift and regeneration frequency.

What the professional checks

The water specialist/plumber verifies water analysis, capacity, connection, backflow protection and brine destination.

Official / technical sources

Québec — guide de conception eau potable ↗CNRC — CNP 2025 ↗

Sources checked 2026-08-23. Local requirements and exact products control.

Related path

Continue with the right tools

These links connect this page to the next useful checks and decisions without repeating the full content.

Start from a symptomOrganize plausible causes, observations, urgency and the right professional.Open →Track water useCompare meter readings and flag unusual changes.Open →Review water resilienceConnect flooding, drainage and future events to building adaptations.Open →Score home resiliencePrioritize water, outages, fire, climate, health and records.Open →Plan site, drainage and utilitiesCoordinate access, water, sewer, wells, septic, grading and site constraints.Open →

Tools related to this issue

Special check related to this project

Property lines and neighbour work

Open →

V14

Systems to check before closing the work

V14 connects envelope, air, fire, structure, water and code instead of treating each project in isolation.

Renovation dependenciesPlumbing pressure and systemCode versions

V15

Remaining system checks not to miss

V15 covers issues that can block a project, cause a loss or become expensive once concealed.

Before closing wallsPrivate sewer/water servicePost-renovation commissioningCodes + climate by province

V16

Advanced diagnostics to cross-check

V16 connects water, soil, climate, safety, materials and seasonal use to existing projects.

Drinking-water quality and treatmentRainwater and greywaterPyrite, pyrrhotite and ochre

V17

Specialized systems to cross-check

V17 completes gas, soil, water, fire, climate and structural interfaces.

Advanced septicCulvert and ditch

V18

Specialized diagnostics to verify

V18 connects systems that become costly or regulated when a primary project triggers them.

Low-slope roof

V19

Edge systems to integrate into the project

V19 covers interfaces that become important when multiple home systems interact.

Green roofStormwater infiltration

V27

Project risks and overlooked interfaces

V27 connects payment, water, envelope, ventilation and jobsite details that often create costly surprises.

Laundry room leak containment

V28

Finish and service details to verify

V28 connects small details that become costly once finishes are closed.

Plumbing cleanouts and service accessOutdoor faucet: freeze and backflow protectionCladding clearance above grade

V29

Household safety and compliance details

V29 connects smaller risks that often fall between finishes, appliances, plumbing and local code.

Water-treatment backwash and reject discharge

V47

V47 interfaces not to miss

These details are small on a drawing but can control water, structure or durability.

Building trapCast-iron stackSump discharge freeze