VERT / GREEN
Measure distance, wait time and wasted volume before adding a pump.
Domestic hot-water recirculation
Reduce wait time at distant fixtures without turning piping into a permanently hot energy-wasting loop.
JAUNE / YELLOW
Demand, timer or sensor control can be preferable to continuous circulation; pipe insulation matters.
ROUGE / RED
Pump added without proper checks/balancing, inadequate temperature or stagnant branches: plumbing design required.
Guided triage
Tools / data
- Wait time/distance
- Supply/return temperatures
- Use schedule
What the professional checks
- Select recirculation strategy
- Size pump/balancing
- Verify temperature/hygiene
Official sources
Source check / vérification: 2026-08-22. Triage et planification seulement; les travaux réglementés restent aux professionnels requis.Related path
Continue with the right tools
These links connect this page to the next useful checks and decisions without repeating the full content.
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V16
Advanced diagnostics to cross-check
V16 connects water, soil, climate, safety, materials and seasonal use to existing projects.
V27
Project risks and overlooked interfaces
V27 connects payment, water, envelope, ventilation and jobsite details that often create costly surprises.
V28
Finish and service details to verify
V28 connects small details that become costly once finishes are closed.
V39 · Specialized diagnosticVERT / GREEN JAUNE / YELLOW ROUGE / RED
Domestic hot-water recirculation: comfort, energy and plumbing
Prepare and document before changing the system.
Verify interfaces and requirements before work.
Stop when safety, structure, compliance or the cause is not confirmed.
Specialized triage
What the professional checks
The plumber verifies flow, balancing, temperature, insulation, check valves and potable-water compliance.