PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Some chemicals such as Liquid Chlorine have a naturally high pH and consistently help to raise pH. This is the reason why Salt Pools have a higher acid demand to keep pH balanced.
http://www.w3.org/ns/prov#wasQuotedFrom
  • poolpro.com.au