Customer report
The customer required several plumbing works at the Kew property. The recorded scope included installation of a pressure-reducing valve at the water meter, replacement of corroded and dented copper mains underneath the house, installation of a new garden tap near the garden beds, and investigation of low pressure at a rear garden tap connected to the rainwater and pump setup.
Diagnosis & Technical Assessment
The plumbing assessment identified several separate water supply issues across the property. Copper pipework underneath the house was recorded as corroded and dented, with the affected section measuring approximately 8 metres. The condition of this pipework required replacement as part of the confirmed works.
The low-pressure garden tap issue was investigated through the rainwater and pump setup. The rainwater tank inlet was found to be fully blocked, and the water level was too low for rainwater to reach the pump. As a result, the garden tap system was running on mains water rather than rainwater.
The mains-fed garden tap system also had a separate pressure-reducing valve that was set too low. This finding connected the reported low-pressure issue to both the rainwater supply condition and the pressure setting on the mains-fed garden tap system. The assessment separated the copper mains replacement, new garden tap installation and pressure adjustment into distinct works completed during the attendance.
All work was completed in accordance with the Victorian Building Authority (VBA) regulatory framework.
Solutions delivered
A pressure-reducing valve was installed at the water meter as part of the confirmed plumbing works. Under the house, approximately 8 metres of highly corroded copper pipework was replaced. The new garden tap was installed by tapping into the main branch while the copper mains replacement was being completed, then running a new half-inch copper line to the side of the house.
The rainwater and pump setup was investigated to address the low-pressure issue at the garden tap. The blocked rainwater tank inlet was cleared, and the separate pressure-reducing valve supplying the garden taps was adjusted after it was found to be set too low. These works restored the garden tap supply, with the garden taps recorded as running at 500 KPI.
Tools, Parts & Systems Used
- Pressure-reducing valve
- Copper pipework
- Half-inch copper line
- Garden tap
- B press joiners
Outcome & Results
The pressure-reducing valve was installed at the water meter, the corroded copper mains were replaced, and a new garden tap was connected to the property’s plumbing system. The blocked rainwater tank inlet was cleared, and the separate pressure-reducing valve supplying the garden taps was adjusted to improve water pressure. Following completion, the garden taps were recorded as operating at approximately 500 KPI, and no additional future plumbing works were identified during the attendance.
All work was carried out in accordance with relevant Australian Standards and safety requirements.
Repair vs Replacement
Water supply issues may require either adjustment, repair or replacement, depending on the condition of the affected plumbing components. In this project, severely corroded copper mains were replaced because the pipework condition warranted renewal, while the low-pressure garden tap was resolved by clearing a blockage in the rainwater tank inlet and adjusting an incorrectly set pressure-reducing valve. Assessing each issue independently enabled the appropriate solution to be applied to each section of the plumbing system without unnecessarily replacing components.