This TSO version of approved document H supersedes the DTLR version (ISBN 0117566075) now no longer available.Diagram. 2. Branch. connection. to. stacks. a. crossflow. prevention. 1 Should be as short as possible to prevent deposition. ... 1.13 A branch pipe discharging to a gully should terminate between the grating or sealing plate and the top of the water seal. ... If an additional trap is provided externally to the boiler to provide the 75mm seal, an air gap should be provided between the boiler and the trap. a.
|Title||:||The Building Regulations 2000|
|Publisher||:||The Stationery Office - 2006-06-09|