About: http://webisa.webdatacommons.org/401108286

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	The phosphate-free formula prevents staining and water discoloration caused by iron, copper and other trace metals.
http://www.w3.org/ns/prov#wasQuotedFrom	nationalpoolwholesalers.com