About: http://webisa.webdatacommons.org/147420183

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	There is no set pressure to determine the time to clean or backwash as the pressure is dependent upon several variables including pump size and efficiency, filter size, plumbing and any other restriction.
http://www.w3.org/ns/prov#wasQuotedFrom	amerimerc.com