Copper pitting and pinhole leaks

Treat repeated pinhole leaks as a possible system failure pattern involving water and installation conditions rather than isolated holes.

VERT / GREEN

Record location, age, diameter, hot/cold service and history of each leak.

JAUNE / YELLOW

Multiple pinholes in one area justify reviewing failure pattern, water and piping.

ROUGE / RED

Hidden active leak, widespread corrosion or electrical/structural damage: shut water safely and diagnose before cosmetic repair.

System triage

Two or more similar leaks
Map failures and review water quality, flow and installation. Widespread pitting/corrosion
Assess scope before multiplying small repairs. Leak near electrical equipment
Secure water/electrical hazards before intervention. Single repair documented
Keep sample/photo and monitor recurrence.

What the professional checks

The plumber and, when needed, water specialist examine leak pattern, water quality, system conditions, fittings and replacement strategy.

Official sources

Santé Canada — document technique cuivre

Vérifié / checked: 2026-08-23

Related path

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