Meeting Codes and Bylaws

Ensure your irrigation system meets current national and local codes, regulations and bylaws

As of January 1, 2013 All irrigation systems (including residential systems) installed in Canada are subject to the CSA B64.10-07/B64.10.1-07 section and installation of backflow preventers code and Clause 2,6,2,1,(3) in The National Plumbing Code of Canada 2010. Alberta adopted the 2010 Federal Plumbing code as of December, 2013. (click to read more)
Ensure your system meets current national and local codes, regulations and bylawsAccording to the code all irrigation systems now require:

  1. For systems without injection of chemicals:
    • a PVB device installed upstream of the irrigation system shut-off or other control valves and at
      least 300 mm above the highest point of the irrigation system; or
    • a DCVA backflow preventer (highlight for link to a definition of a DCVA) installed upstream of the irrigation system shut-off or other control valves;
  2. or For systems with injection of chemicals, an RP backflow preventer installed upstream of the irrigation system shut-off valves.

DCVA definition:

Double Check Valve Assembly – A DCVA is a mechanical backflow preventer that consists of two independently acting, spring-loaded check valves. It includes shutoff valves at each end of the assembly and is equipped with test cocks (ports for regular testing of the device). A DC is effective against backpressure backflow and back-siphoning, but should be used to isolate only non health hazards. Double check assemblies are typically used to prevent backflow of pollutants that are objectionable but not toxic.

Double Check Valve Assembly

Double Check Valve Assembly

Who can request a permit?

Answer: CQT or City Qualified Trade contractors.

For a list of CQT visit here (.pdf)

(Click here for more FAQ’s related to current national DCVA requirements.)

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