If a Backflow Device Failed Testing, it means the device did not meet the required performance standard during inspection.
It does not always mean the complete unit needs replacement. In many cases, cleaning, servicing or replacing worn parts can resolve the problem.
CRG Plumbing & Maintenance can identify the fault, explain the available options and complete the required repairs. We service Campbelltown and properties throughout Greater Sydney.
Contact Cameron and the CRG team on 02 4656 4064 for assistance with a failed device.
My Backflow Device Failed Testing. Why?
These devices contain valves, seals, springs and other moving parts. Over time, wear or contamination can stop those components from operating correctly.
Common causes of failure include:
- worn or damaged seals
- debris inside the assembly
- leaking valves
- corrosion
- damaged internal components
- incorrect installation
- poor maintenance
- ageing equipment
The test result should help identify which part of the assembly caused the failure.
What Happens After a Failed Test?
The plumber will explain why the device failed and what work may correct the problem.
Depending on its condition, the next step may involve:
- cleaning internal components
- replacing seals or worn parts
- repairing damaged valves
- servicing the assembly
- replacing the complete unit
- correcting installation problems
CRG will discuss the recommended work before proceeding.
Can a Failed Device Be Repaired?
Many failed units can be repaired.
A device may only need cleaning or a relatively small replacement part. This often applies when debris, worn seals or minor valve problems caused the failed result.
However, repair may not be practical when the assembly is badly corroded, severely damaged or no longer suitable for the property.
CRG will assess its condition and recommend either repair or replacement.
When Is Replacement Necessary?
Replacement may become the better option when repairs cannot restore reliable operation.
This can occur when:
- the body is cracked or badly corroded
- replacement parts are unavailable
- several components have failed
- previous repairs have not solved the problem
- the unit no longer suits the property’s hazard rating
- repair costs approach the cost of replacement
The new device must suit the connection and applicable requirements.
Does the Device Need to Be Tested Again?
Yes. A repaired or replaced device must be tested before it can receive a passing result.
The follow-up test confirms that the work has corrected the fault. It also verifies that the assembly now operates as required.
CRG can complete the repairs and arrange the required retest.
What Happens to the Sydney Water Report?
A failed result must be recorded accurately.
Once repairs are complete, the device is tested again. CRG can then complete the required documentation and submit the updated result to Sydney Water.
Property owners should also keep copies of testing and repair records.
Can the Water Supply Still Be Used?
That depends on the device, the fault and the plumbing arrangement.
Some repairs may require the water supply to be isolated temporarily. A serious failure may also require prompt action to protect the drinking water supply.
CRG will explain any immediate restrictions after inspecting the assembly.
How Can Future Failures Be Reduced?
No device will last forever. However, regular maintenance can reduce avoidable problems.
Useful steps include:
- keeping the assembly accessible
- protecting it from physical damage
- repairing visible leaks promptly
- arranging annual checks before the due date
- retaining service and repair records
- acting quickly after a failed result
CRG can also record the next due date and provide an annual reminder.
Arrange Repairs After a Failed Backflow Test
CRG Plumbing & Maintenance provides testing, repairs and replacement services across Campbelltown and Greater Sydney.
We can assess the problem, explain the available options and complete the required follow-up work.
Contact the team at CRG on 02 4656 4064 for all of your backflow plumbing needs.
Backflow FAQs
Does a failed test mean the device must be replaced?
No. Many devices can be repaired by cleaning internal parts or replacing worn components. Replacement may become necessary when the unit is badly damaged, corroded or unsuitable. CRG will assess the fault and explain whether repair or replacement offers the better solution.
What causes a backflow prevention device to fail?
Common causes include worn seals, debris, leaking valves, corrosion and damaged internal parts. Incorrect installation or poor maintenance may also contribute. The testing process helps identify which component is not operating correctly.
How quickly should a failed device be repaired?
Repairs should be arranged promptly. The device protects the drinking water supply, so a failed result should not be ignored. The required timeframe may depend on the fault and any instructions provided after testing.
Can CRG repair and retest the device?
Yes. CRG can inspect the failed unit, complete suitable repairs and test it again. If replacement becomes necessary, the team can explain the available options and arrange the required work.
Will repairs involve an additional cost?
Yes. Standard testing charges do not generally include repairs, replacement parts or retesting. The final cost depends on the fault and work required. CRG will explain the recommended solution before completing additional work.
What happens if the repaired device fails again?
Further investigation may be required if the unit still does not pass. Another component may be faulty, or replacement may offer the more reliable option. CRG will explain the new result and recommend the next step.
CRG Plumbing & Maintenance are fully accredited & qualified backflow testing specialists. Call the experts at CRG on 02 4656 4064 or fill out our contact form to enquire online.