The Canadian Plumbing Standards Association (CSA) has developed plumbing standards for use throughout Canada. The two standards that affect chemical dispensers are B125-98, Plumbing Fittings, and B64-94, Backflow Preventers and Vacuum Breakers. B125-98 Plumbing Fittings Hydro Systems' AirGap eductors and E-gap eductors used in chemical dispensers are listed to CSA standard B125-98. This standard requires Hydro dispensers with built-in backflow preventers have the backflow preventers tested to CSA standard B-64. B64-94 Backflow Preventers and Vacuum Breakers The B64-94 standard defines requirements for stand-alone backflow preventers and vacuum breakers. Hydro's E-gap eductor and AirGap eductors are not for sale as a stand-alone backflow preventer and therefore, are not listed to this standard. Hydro's eductors are acceptable backflow preventers when used in chemical dispensers, and thus, are listed to CSA standard B-125. The eductors have been tested to B64 as required by B125 section 4-5, and thus, are acceptable backflow devices as defined by the CSA. For additional clarification on Hydro's adherence to CSA standards, we have compiled information into a downloadable packet.
For a complete and up-to-date copy of Canadian plumbing standards, please contact the Canadian Standards Association.
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