Drain materials, defects and repair guidance
Guidance on common drain pipe materials, defects and access, and how they affect lining, local repair or replacement.
Service details
Complete the form and we will get back to you.
29 reference records · 5 detailed guides
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.
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.
8 matching records · Clear search
Pipe connections and access
Inspection-chamber access varies with chamber depth and design. Those details matter when inspection or repair access is planned.
Pipe connections and access
Bedding and the surrounding fill support a drain pipe. An internal survey cannot, by itself, confirm the condition of that external support.
Pipe connections and access
Access points may be used for inspection or testing. The installed access and the proposed repair method determine which checks can be carried out.
Pipe connections and access
Drains below buildings can be difficult to reach. The route through the building matters when inspection or repair is planned.
Pipe connections and access
The channel carries flow through an inspection chamber. A channel defect should be distinguished from a defect in the pipework entering or leaving the chamber.
Pipe connections and access
Rodding points are purpose-made access points for drainage maintenance. Their position affects which parts of a run can be inspected or reached.
Pipe connections and access
A shallow inspection chamber gives access to the drainage system, but it should not be treated as a personnel-entry point. Its type, depth and location determine how it can be used.
Above-ground waste pipework
Ventilation is part of the soil and waste system. Odour or ventilation symptoms should be distinguished from a confirmed defect in the pipework.
Published by Drain Relining. Sources checked 12 September 2026. Editorial standards.
Please contact us if you spot an error in this library.
Contact us to discuss drain inspection, lining, local repair or replacement.
