Overview of the Toilet Leak Issue

At a property on Byron Street in Kew VIC 3101, our team at Your Choice Plumbers was called out after the homeowner reported a toilet leaking continuously into the bowl.

The toilet suite was more than 20 years old, and the owners were understandably weighing up whether it should be repaired or replaced. However, because they had future renovation plans, they wanted a practical repair solution that would restore function without committing to a full toilet replacement yet.

This is exactly the kind of situation where homeowners start asking, “why is my toilet constantly running into the bowl?” or “is it worth repairing an old leaking toilet?” As an experienced [plumber Kew], we often find that older toilet suites can still be repaired successfully when the issue is isolated to the internal cistern components and the suite itself remains structurally sound.

Initial Diagnosis and Key Clues

The main symptom was a heavy continuous leak into the bowl, which indicated the cistern was not shutting off properly after flushing.

When a toilet leaks continuously into the bowl like this, the problem is often caused by one or both of the following:

  • the outlet valve not sealing correctly
  • the inlet valve continuing to refill due to internal component wear

Because the toilet was older, it was important to confirm whether the issue could be solved with targeted internal repairs or whether the suite had reached the point where replacement would be the better option.

What We Found

After inspecting the internal cistern components, we confirmed two separate faults:

  • a worn inlet valve
  • a faulty outlet valve causing continuous water leakage into the bowl

This explained why the toilet would not stop running properly. The outlet valve was not sealing as it should, and the internal components had worn enough over time to affect the overall operation of the cistern.

As part of our broader assessment, we also checked the property’s water pressure and confirmed it was operating below 500 kPa, which meant the installation was within compliant pressure limits and the fault was related to component wear rather than excessive pressure.

Repair and Toilet Restoration

Because the owners wanted to avoid replacing the entire suite before their renovation, we carried out a targeted cistern repair.

We:

  • removed the faulty internal components
  • installed a new Performer Thunder Flush outlet valve
  • installed a new Fluidmaster Pro 45 inlet valve
  • replaced the flexible hose connection
  • tested the toilet for correct fill, flush, and shut-off operation

Once the repairs were complete, we confirmed the toilet was functioning correctly with no further leakage into the bowl.

Outcome and Client Result

The repair restored the toilet to proper working order without the need for a full suite replacement.

The result was:

  • continuous leak eliminated
  • correct flushing performance restored
  • water waste stopped
  • existing toilet suite kept in service until future renovation

The owners were relieved to have a cost-effective solution that solved the problem immediately while giving them time to move ahead with their renovation plans later.

Compliance & Prevention Insight

This case highlights how older leaking toilets do not always need to be replaced straight away.

When the suite itself is still in reasonable condition, targeted internal repairs can often provide a very effective solution. In this case, replacing the faulty inlet and outlet components restored full function and prevented ongoing water loss.

It also reinforces the value of checking water pressure as part of the diagnosis. Confirming compliant pressure under 500 kPa helped ensure the new components would operate reliably without being prematurely affected by excessive pressure.

Compliance with Australian Standards

All work carried out by Your Choice Plumbers is completed in accordance with the relevant plumbing standards, helping ensure toilet repairs are performed safely, correctly, and with long-term reliability in mind.

In simple terms, this means your toilet is repaired properly so it can flush correctly, shut off as it should, and avoid unnecessary water waste.

Our Home Plumbing Experts Approach

As part of our Home Plumbing Experts approach, we focus on both repair and prevention.

We offer a Complimentary Property Protection Audit as part of our service, assessing key areas like water pressure, hot water temperature, and flexible hoses — helping homeowners stay ahead of potential plumbing failures and avoid unexpected water damage.

👉 Find out more about our leaking toilet repairs Melbourne services.