Shared water or sewer service between properties
Some older properties share a Y-connection or common service. Identify ownership, easements, responsibility and separation process before excavation or replacement.
Decision triage
VERT / GREEN · JAUNE / YELLOW · ROUGE / RED
What the professional checks
The specialist/authority checks connection type, route, title/easements, private/public responsibility, permits, shutdowns, size and separation method.
Official sources
Sources checked: 2026-08-24
Continue with the right tools
These links connect this page to the next useful checks and decisions without repeating the full content.
Explore: Remaining system checks not to miss
Remaining system checks not to miss
This section covers issues that can block a project, cause a loss or become expensive once concealed.
Explore: Advanced diagnostics to cross-check
Advanced diagnostics to cross-check
This section connects water, soil, climate, safety, materials and seasonal use to existing projects.
Explore: Project risks and overlooked interfaces
Project risks and overlooked interfaces
This section connects payment, water, envelope, ventilation and jobsite details that often create costly surprises.
Explore: Finish and service details to verify
Finish and service details to verify
This section connects small details that become costly once finishes are closed.
Explore: Commissioning and everyday safety
Commissioning and everyday safety
This section helps verify systems after work and document the values that make a home safer to operate.
Explore: Post-disaster and legacy systems
Post-disaster and legacy systems
This section connects contamination, storm damage, legacy materials and recommissioning before rebuilding.
Explore: V47 interfaces not to miss
V47 interfaces not to miss
These details are small on a drawing but can control water, structure or durability.