First: understand what failed
Testable assemblies contain checks, relief valves, air inlets, shutoffs and other components depending on the device type. The field readings identify which performance requirement was not met. Ask for the result in plain language and keep the report.
A failed test does not necessarily mean contamination occurred. It means the device cannot be relied on to provide its intended protection until the issue is corrected and verified.
Repair is often possible
Debris, fouled seals, worn rubber, springs or internal check components can cause failures in otherwise serviceable assemblies. Cleaning or a manufacturer-matched repair kit may restore operation when the body and shutoffs remain sound.
The owner should approve the repair scope and price. A routine testing authorization should not be treated as unlimited permission to replace parts or the entire assembly.
When replacement makes more sense
Replacement becomes more reasonable when the assembly is cracked, freeze-damaged, severely corroded, obsolete, repeatedly failing or difficult to repair economically. The surrounding installation also matters: poor drainage, inaccessible shutoffs or inadequate freeze protection can undermine a new device if they are ignored.
A new assembly may trigger permit, registration and initial-report requirements. Those administrative steps should be included in the replacement plan.
Retesting is not optional
Repair work does not prove that the assembly now meets the test criteria. The tester repeats the field procedure and records the post-repair values. The municipality’s final record should reflect the passing device and any replacement serial number.
If the assembly cannot be repaired during the initial visit, establish who is responsible for protecting or managing the system until the retest. Fire-line and operational systems may require additional coordination.
How municipalities handle a failure
Reporting rules differ. The Township of Langley explains that it tracks failed as well as passed results, so a failed report keeps the property record current and leads to the appropriate repair notice instead of a simple overdue status.
Surrey’s current portal guidance says there is no fee for submitting a failed test; the applicable fee is paid with the passing test after repair or replacement. Always follow the current City process for the address.
Use the failure to improve the next cycle
After the device passes, record what failed, which parts were installed, access problems and the next due date. Consider whether drainage, freeze protection, shutdown coordination or device visibility should be improved.
For a portfolio, one failure can reveal a broader maintenance pattern. Assemblies of similar age, exposure or model may deserve earlier inspection or better winterization before the next annual testing season.
Official sources
Municipal procedures change. Use these sources and the latest property notice as the final authority.
Township of Langley cross connection FAQCity of Surrey backflow portalCity of Surrey Cross Connection Standards