Drain Mapping & Tracing – Why & How
Understanding your system layout helps avoid costly mistakes and speeds up repairs.
Planning an extension? Ask DrainageGPT whether mapping is worth it for your project.
Why it matters
- Helps design extensions and avoid clashes
- Supports insurance claims with evidence
- Prevents costly exploratory digs
- Essential for Building Control submissions
Tools & methods
- Sonde & locator: pinpoints camera head underground, tracks pipe route
- Dye testing: traces connections between chambers
- CCTV survey: confirms condition and defects
- GPS marking: records precise coordinates
What a mapping report includes
- Site plan with pipe routes overlaid
- Depths and diameters at key points
- Chamber/manhole locations
- Defect locations (if found during survey)
When to get mapping done
- Before planning extensions or new builds
- Prior to property purchase (with CCTV survey)
- For insurance claims requiring proof of location
- When repeated repairs need better site knowledge
Related:
Drainage