Combined building drain


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Terms & Synonyms

Official WHO Definition

A building drain that conveys both sewage and storm water or other drainage (WHO 2006).A building drain which carries storm water, rainwater, waste water and sewerage (World Plumbing Council Working Group 2008).

Other Definitions


Interpretations and Explanations

A combined building drain is a building drainage system which must be graded and sized to carry its estimated peak hydraulic storm loads. It uses the venting requirements normally associated with a below ground sewerage drainage system (World Plumbing Council Working Group 2008).


WHO (2006) Health aspects of plumbing

WHO Lexicon page (translations and examples)

See also

External Resources


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