About: http://webisa.webdatacommons.org/426354933

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	They are commonly used under sinks and other fixtures in which a drain is used to better regulate the speed at which the water exits the fixture and enters the septic or sewer system.
http://www.w3.org/ns/prov#wasQuotedFrom	wisegeek.com