Drain materials, defects and repair guidance
Guidance on common drain pipe materials, defects and access, and how they affect lining, local repair or replacement.
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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.
29 matching records
Reported pipe defects
Root intrusion can obstruct a drain, but clearing the roots and repairing the entry point are separate issues. The surrounding pipe still needs to be assessed.
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
A soil-stack branch connects branch pipework to the vertical stack. Its floor level and connection layout help locate and assess a reported defect.
Above-ground waste pipework
Solvent-weld waste joints are different from ring-seal connections. The installed system should be identified before compatibility with a repair product is assessed.
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.
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