About: http://webisa.webdatacommons.org/372974516

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	However, if you will be using surface water, especially if your system will include a storage tank, there is a much higher risk of water contamination, and you should include a quality in-line carbon filter and ultra-violet purifier.
http://www.w3.org/ns/prov#wasQuotedFrom	backwoodshome.com