Drain materials, defects and repair guidance
Drain pipe materials and repair library Guidance on common drain pipe materials, defects and access, and how they affect lining, local repair or replacement.
Technical guidance Sources and references
Pipe material and CCTV survey findings
Pipe material tells you what the system is made from; CCTV shows the visible condition inside it. A repair assessment also needs the affected length, connections and available access.
CCTV survey: recording, defect description and measured distance from the access point.
Pipe: material, diameter, shape and any recorded change of size.
Connections: branch positions, bends and the length of the affected section.
Access: chamber locations, pipe route and restrictions around buildings or occupied areas.
Reference sources for this library
These references are used across the library for the products, systems and technical points they cover. Manufacturer information applies to the named product or system; whether a repair is suitable still depends on the installed pipe, its condition and how the drain is used.
Detailed drain repair guides
Pipe materials
How deposits, corrosion, joints and access influence cleaning, coating, patch repair and structural lining in cast iron drainage.
Read the guide Technical notes Material Cast iron Possible locations Soil stacks and drainage runs Separate assessments Deposits inside the pipe and remaining structural condition Useful records Route, joints, supports and access Buried drain or above-ground stack Leaks, restriction and survey records Branches and available access Known corrosion or previous repairs Approved Document H: drainage and waste disposal
Get a quote Pipe materials
How cracks, joints, movement, access and hydraulic constraints influence internal repair and rehabilitation in concrete drains.
Read the guide Technical notes Material Concrete Typical application Gravity drainage and sewer infrastructure Important distinctions Pipe surface, cracks, joints and movement Repair evidence Survey, dimensions and service conditions Survey with defect locations Pipe diameter and route Industrial discharge information Access and capacity constraints Approved Document H: drainage and waste disposal
Get a quote Pipe materials
How deformation, limited access and host-pipe condition influence specialist preparation, lining or replacement in pitch fibre drains.
Read the guide Technical notes Material identification Confirm from records and competent inspection Inspect closely Deformation, internal condition and remaining passage Possible decisions Specialist preparation, lining or replacement Key limitation A liner does not automatically correct the pipe route Full survey and inaccessible lengths Extent of deformation Pipe route and branch locations Previous cleaning or repair attempts About us - Renoline
Get a quote Pipe materials
How pipe shape, joints, support and CCTV findings influence lining, local repair or replacement in PVC-U drainage.
Read the guide Technical notes Material Unplasticised PVC (PVC-U) Typical system Gravity foul and surface-water drainage Inspect closely Shape, support, joints and branch connections Avoid assuming That every plastic drain is suitable for lining Pipe dimensions and markings if known Survey and deformation findings Drain use and discharge type Access and connection locations Wavin OsmaDrain: product and installation manual
Get a quote Pipe materials
How joints, cracks, movement and connections influence cleaning, local repair, lining or replacement in vitrified clay drains.
Read the guide Technical notes Material Vitrified clay Typical system Underground gravity drainage Inspect closely Joints, fractures, alignment and connections First evidence CCTV survey with defect location and dimensions Survey footage and written findings Pipe diameter and route Defect position and branch locations Previous repairs or root problems Specific Design Cases | Vitrified Clay Pipes | Drainage System
Get a quote Plastic pipe systems
Ribbed-wall gravity sewer pipes Ribbed-wall gravity sewer pipe has a profiled outer wall and a smooth internal bore. Product identification and the internal survey both matter when a repair is assessed.
Wavin: foul-water drainage systems The link above opens the original source.
Technical notes Product identification: record the pipe type, size and any visible markings. CCTV finding: internal bore condition, connections and measured defect position. Wavin: foul-water drainage systems
Get a quote
