About: http://webisa.webdatacommons.org/385016233

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	When fittings such as T fittings and elbows (especially two elbows at right angles) are located too close to the pump inlet, a spinning action, or "swirl, is induced.
http://www.w3.org/ns/prov#wasQuotedFrom	waterworld.com