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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	How a Drain, Waste & Vent (DWV) System Works In every home is a drain, waste & vent system, also called DWV. This drainage system is designed to carry away waste water while preventing the flow of sewer gases into your home.
http://www.w3.org/ns/prov#wasQuotedFrom	acmehowto.com