About: http://webisa.webdatacommons.org/58217207

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	If cost is an issue, use 1 poly pipe everywhere, however, I would make sure none of the zones used over 10 gpm since you will be lossing too much pressure if you exceed 10 gpm.
http://www.w3.org/ns/prov#wasQuotedFrom	sprinklertalk.com