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Holding tank



A holding tank, also called a waste water holding tank or black (water) tank, is a container for storing sewage in vehicles equipped with toilets. Vechcles that employ holding tanks include recreational vehicles (RVs), trucks (U.S. usage) or lorries (UK usage), railroad trains, boats, aircraft, and even spacecraft. The contents are emptied into a dump station, which discharges the raw sewage into a sewage treatment system.

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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Holding_tank". A list of authors is available in Wikipedia.
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