About: http://webisa.webdatacommons.org/71462511

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	Heavy metals, such as lead from paint, settle to the bottom of the bath while other contaminants are trapped in crust of silica, known as slag, that forms on top.
http://www.w3.org/ns/prov#wasQuotedFrom	keelynet.com