About: http://webisa.webdatacommons.org/101472706

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	You get close with measurements as best you can, then the rest is a slow progressive increase/decrease and watch closely over the next few days before deciding to add more/less etc.
http://www.w3.org/ns/prov#wasQuotedFrom	plantedtank.net