Backflow Inspections
Total Group provides backflow prevention system testing and repairs for industrial facilities. Backflow preventers help protect potable water from reverse flow or back-siphonage from connected equipment, process piping or fire-protection systems. Testing with calibrated equipment assesses the installed assembly; repair work addresses known defects or failed results within the agreed scope.
Backflow testing and repair scope
A backflow inspection is not the same as designing a new plumbing connection or assessing every cross-connection on a site. The work begins with the particular assembly, its connected system and the reason for the visit. Total Group’s ordinary scope includes:
- Testing existing backflow prevention equipment with calibrated test equipment.
- Repair work on backflow prevention systems when repairs are needed.
Testing checks whether the installed preventer is performing as intended at the time of the test. It does not, by itself, prove that every cross-connection on a property has been identified or that an assembly is the correct device for a changed hazard. Selection, installation, maintenance and field testing are related but separate parts of backflow control.
Why backflow prevention matters
A cross-connection is a permanent or temporary piping arrangement that can connect potable water to a possible contaminant source. Backflow can occur through back-siphonage or back pressure. Examples around industrial and commercial facilities can include process equipment, boilers, irrigation, water treatment equipment, hose connections and fire-protection systems.
The hazard depends on what is connected, how the system can change pressure and whether the connection can introduce a contaminant. A suitable control may involve an air gap or a particular type of backflow preventer. The device selection is a design and hazard-assessment decision, not something to infer from a test result alone.
Canadian standards and local requirements
CSA B64.10 addresses selection and installation of backflow preventers. CSA B64.10.1 addresses maintenance and field testing. The CSA issuer describes these as separate standards intended for designers, installers, owners and inspection authorities. A test report should therefore be read alongside the installation and hazard requirements that apply to the facility.
Canadian requirements vary by province, municipality, water utility and site arrangement. The applicable law or water-service programme may also identify who may test, how reports are submitted and when a device must be tested. A standard name alone does not establish which edition has been adopted or whether a local rule adds requirements.
For example, Edmonton’s current EPCOR Water Services Bylaw requires customers to control cross-connections with approved backflow-prevention measures, including fire lines, and makes EPCOR’s Cross Connection Control Procedure Guide part of its water-services guidelines. Calgary’s programme tells businesses and building owners to have required devices installed and tested yearly and requires a certified tester registered with the City for covered testing. These are local examples, not a universal Canadian schedule. Confirm the governing water utility and local requirements for the facility before arranging work.
When to arrange service
Arrange a discussion when a utility or authority has requested a test, a scheduled inspection is approaching, a previous result identified a deficiency, or a repair, relocation or system change may affect the assembly. A new or modified connection may need a different review from routine testing. Testing can also be relevant after repair or replacement where the applicable programme requires confirmation of the assembly’s condition.
Do not assume that every device is tested on the same schedule. Some programmes use annual testing, while others set requirements based on the device, connected hazard, installation event, seasonal use or local notice. Share the authority letter, programme instruction or previous report so the requested service can be matched to the actual requirement.
Owner responsibilities and documentation
The facility owner or operator remains responsible for identifying site connections, maintaining access to the assembly and following the applicable water-service programme. Keep the device location, manufacturer, model, size and serial number available with previous test and repair records. If the test identifies a deficiency, the owner should coordinate the required repair, follow-up test and any notification or submission required by the authority.
A test report, a repair record and an authority acceptance or certificate are not automatically the same document. Tell Total Group who needs the record, what format is requested and whether a deadline applies. The available reporting and submission steps should be confirmed for the agreed scope rather than assumed from the test itself.
Prepare for a useful service inquiry
Send the information available for each assembly:
- Facility address, site contact and preferred service window.
- Assembly location, manufacturer, model, size and serial number, if known.
- Connected system, such as domestic water, fire protection, irrigation or process water.
- Previous test reports, authority notices and known leaks, damage or failed results.
- Photos of the assembly, labels, nearby valves and working clearance where site rules permit photography.
- Access restrictions, escort requirements and any shutdown or operating-window considerations.
Do not alter valves or attempt a field test unless the work is assigned to a suitably qualified person under the applicable site and authority requirements. The safest way to resolve a failed result or uncertain device scope is to provide the records and arrange qualified review.
Discuss your backflow inspection requirements
Tell our team which assemblies are involved, whether the request is for testing, repairs or both, what prompted the visit and what documentation is needed. For related fire-protection work, explore our Fire Services.
Sources
- EPCOR: Cross Connection Control. Explains cross-connections, owner exposure, tester registration and calibration-report requirements for Edmonton’s programme.
- City of Edmonton, Bylaw 19626, EPCOR Water Services Bylaw, consolidated July 7, 2026. See Schedule 2, sections 5.4(b)–(f), including customer duties for cross-connections and approved backflow measures.
- City of Calgary: Cross Connection Control Program. Provides Calgary-specific examples, owner responsibilities, annual-testing information and certified-tester requirements.
- City of Calgary: Cross connections for testers. Summarizes local registration and event-based testing information.
- CSA Group: B64.10-07/B64.10.1-07. Describes the separate selection/installation and maintenance/field-testing scopes; confirm the edition adopted for the facility.
- Alberta Municipal Affairs, Backflow Preventers for Potable Water Systems, Information Bulletin P-08-03-NPC10(Rev2), November 2012. Historical Alberta plumbing-code guidance; the bulletin is marked out of date and is not presented here as current law.
