The protection of the potable water supply in the city of Winnipeg is a matter of mutual concern and benefit. Therefore, the Province of Manitoba, in conjunction with the National Research Council of Canada, has embarked on a program where industry is required to install backflow prevention devices in any situation where a possible cross-connection could occur. These devices must be tested upon installation and annually thereafter by a licensed tester.
A list of testers licensed to service and test protective devices is mailed to industry annually. Those persons working without licensing by the City of Winnipeg program are bound by the Canadian and Manitoba Plumbing Codes to eliminate all cross-connections by the installation of the proper backflow prevention devices.