Who is responsible for road mains -- Under floor leaks in timber and solid floors -- Problems with hidden drainage in tower block -- Detecting mains leaks: chemical test, listening stick, mains access cover inspection, siphon test -- Methods for dealing with drains in-situ -- CCTV -- Water jetting -- Invert levels and sufficient falls -- Detecting services -- Discussion of pipe-bursting and impact-modelling -- Tree roots and over-planting -- Root cutters -- Pipe lining -- Discussion of re-rounding -- Health and safety issues -- Simple drain checks - flush test and pressure test -- Part H of Building Regulations -- Ground water measurement -- Flood drainage -- Sustainable Urban Drainage Systems

This DVD explains how to discover whether drains or water supplies are leaking, where they are, who is responsible for them, and how they can be repaired. Includes case studies.