Drain (plumbing)

A drain is the primary vessel or conduit for unwanted water or waste liquids to flow away, either to a more useful area, funnelled into a receptacle, or run into sewers or stormwater mains as waste discharge to be released or processed. In some countries a distinction is made between foul water drainage and surface water drainage.

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Source: Wikipedia · Image: Wikimedia Commons · CC BY-SA 3.0

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