About: http://webisa.webdatacommons.org/292234521

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	An object such as a brick or plastic container is placed in the tank to displace some of the water so that there is less available to use per flush.
http://www.w3.org/ns/prov#wasQuotedFrom	metafilter.com