HydroTrace Technical Glossary
Definitions of leak detection, CCTV pipe inspection, GPR, utility location, pipe relining and trenchless rehabilitation terms used by HydroTrace.
Glossary Terms
CIPP
Cured-in-place pipe, a trenchless pipe rehabilitation method where a resin liner is cured inside the existing pipe.
View definitionTrenchless rehabilitation
Pipe repair or renewal with minimal excavation by working through existing access points where practical.
View definitionCCTV pipe inspection
Internal pipe inspection using a drain camera to identify cracks, roots, blockages, deformation and other defects.
View definitionInfiltration
Groundwater entering a damaged sewer or stormwater pipe through cracks, joints or defects.
View definitionRoot intrusion
Tree or plant roots entering a pipe through cracks, openings or failed joints.
View definitionBrush coating
Internal coating method where epoxy is applied to the pipe wall by specialist equipment.
View definitionSectional liner
A localised liner installed to repair a specific pipe defect or short section.
View definitionGPR
Ground penetrating radar, used to detect subsurface features and utilities under suitable conditions.
View definitionUtility location
The process of identifying and marking buried services before excavation or construction.
View definitionConcrete scanning
Scanning concrete to locate embedded rebar, conduits and services before cutting or coring.
View definitionDownpipe relining
Internal rehabilitation of vertical rainwater or drainage pipes, often in multi-storey buildings.
View definitionStormwater rehabilitation
Repair or renewal of stormwater pipes, culverts and drainage lines.
View definitionSewer relining
Internal rehabilitation of sewer pipes to reduce leaks, blockages and structural defects.
View definitionPipe diameter
The internal or nominal size of the pipe, critical for camera, cleaning and liner selection.
View definitionAccess point
A manhole, cleanout, gully, rodding eye or opening used to inspect or rehabilitate a pipe.
View definitionPost-installation CCTV
Final camera inspection used to verify relining or repair quality.
View definition