Tempering Valve Replaced in Port Melbourne
Completed Job Summary
Insufficient hot-water temperature was investigated during plumbing work at a Port Melbourne property. The technician accessed the roof space, replaced the 15 mm tempering valve, installed a Monster Washer on the cold tap, completed associated breech work and tested the hot-water temperature after the repairs.
8 July 2026
Reece
Plumber
81928
This job record is derived from first-party technician notes and the Simpro job management.
Customer report
The customer reported that the tempering valve was not working properly and that the hot-water temperature was not hot enough. The plumbing attendance, therefore, involved the hot-water temperature control arrangement at the property.
The work also involved a cold tap and breech, which were addressed during the same attendance after the technician identified damage in the breech.
Diagnosis & Technical Assessment
The reported hot-water issue centred on insufficient temperature and an existing tempering valve that was not operating properly. The technician accessed the roof space as part of the work and replaced the tempering valve.
During the attendance, the technician also noted that the breech associated with the cold tap was cracked. A Monster Washer was installed on the cold tap, while the work scope also identified machining and servicing of the breech.
The technician observed that the roof-space door hatch was damaged and badly corroded, and referred to a leaking meter in connection with that condition. The customer was advised about the hatch condition during the attendance.
Following the plumbing work, the hot-water temperature was tested. The technician recorded the result as “perfect,” providing post-work confirmation that the temperature issue had been addressed after the replacement of the tempering valve.
The completed work, therefore, combined the hot-water temperature-control repair with component work to the cold tap and damaged breech during the same Port Melbourne attendance.
All work was completed in accordance with the Victorian Building Authority (VBA) regulatory framework.
Solutions delivered
The technician accessed the roof space and replaced the existing tempering valve with a 15 mm tempering valve. This work directly addressed the reported problem of insufficient hot-water temperature.
The cold-tap assembly was also worked on after the breech was found to be cracked and broken. A Monster Washer was installed on the cold tap, and the recorded job scope included machining and servicing of the breech.
After the tempering valve replacement and associated plumbing work were completed, the hot-water temperature was tested. The technician recorded a satisfactory temperature result following the repair.
The customer was also advised about the damaged and corroded roof-space access hatch observed during the attendance. The confirmed completed scope remained focused on the tempering-valve replacement, cold-tap component work, breech service and post-work temperature check.
Tools, Parts & Systems Used
- 15 mm tempering valve
- Monster Washer
- Cold tap
- Breech
- Hot-water plumbing
Outcome & Results
The tempering valve was replaced, and the cold-tap assembly received component work, including installation of a Monster Washer and recorded breech servicing. After completion, the hot-water temperature was tested, and the technician recorded the result as satisfactory. The customer was also advised of the damaged and corroded roof-space access hatch observed during the attendance.
All work was carried out in accordance with relevant Australian Standards and safety requirements.
Repair vs Replacement
Hot-water temperature-control problems can involve individual components rather than the replacement of an entire hot-water system. Where a tempering valve is the component being addressed, replacement of that valve can allow the existing hot-water installation to remain in service.
For this Port Melbourne job, the tempering valve was replaced while the broader hot-water plumbing remained in place. The cold-tap and breech work followed a similar component-level approach: a Monster Washer was installed, and the breech was serviced rather than replacing the complete fixture arrangement. The hot-water temperature was then tested following completion of the work.