"This new version of Backflow Prevention and Cross Connection Control Guidelines takes account of changes to the Plumbing Regulations, the escalation in urban rainwater tank installations across New South Wales and reported operational difficulties associated with backflow prevention devices."--Website summary.
"Revised July 2013"--Cover.
"These Backflow Cross Connection Prevention Guidelines are an update of those prepared and distributed by the Water Directorate in May 2009 ... The Backflow and Cross Connection Prevention Guidelines have been updated by Daryl McGregor Pty Ltd, Consulting Engineers"--Page 3.
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