Approved Document H
Drainage and waste disposal
About Approved Document H
Approved Document H gives guidance on drainage and waste disposal. It covers drainage above and below ground, treatment of waste water on sites without a public sewer, and storage of solid waste.
What it covers
- Foul water drainage and sanitary pipework
- Wastewater treatment systems and cesspools
- Rainwater drainage
- Building over or close to sewers and drains
- Separate systems of drainage
- Solid waste storage
Approved Document H: drainage and waste disposal
Ministry of Housing, Communities and Local Government
Figures in the current edition
Diagram 1 Direct connection of ground floor WC to a drain
Diagram 2 Branch connection to stacks – crossflow prevention
Diagram 3 Branch connections
Diagram 4 **Branch ventilation pipes**
Diagram 5 Stub stack
Diagram 6 Termination of ventilation stacks or ventilation part of discharge