When Mohan, a homeowner on Morotai Ave, Ashburton, VIC 3147, reported that the water pressure in his 15-year-old home was so low he struggled to shower, he suspected his new heat pump hot water system was the culprit. However, our plumber’s expert investigation uncovered a dual failure in the original Pressure Regulating Valve (PRV), which was not only failing to limit pressure but actively restricting flow.

The Complex Diagnosis: High Pressure, Low Flow

The problem was a technical mystery:

  1. Initial Check: Our plumber confirmed that the new Heat Pump Hot Water System was not restricting the flow and the unit’s components were operating correctly.
  2. Static Pressure Reading: Testing the static pressure at the front garden tap revealed a dangerously high reading of 900 Kpa. This confirmed the existing PRV, installed during construction, had failed its primary job of limiting pressure to the maximum 500 Kpa standard.
  3. The Choke Point: Despite the high static pressure, the flow was low. The plumber deduced that the aged and faulty PRV was acting as a severe choke point in the water supply system.

The plumber demonstrated this critical diagnosis to Mohan by disconnecting the old PRV and turning the water meter stop valve to the open position. The full, powerful volume of water coming straight from the meter instantly proved the fault lay with the valve, not the pipes or fixtures.

The Solution: PRV Replacement and Compliance Restoration

The failing PRV needed to be replaced immediately for both compliance and flow restoration.

Our plumber explained that the old valve was restricting the water volume and needed replacing regardless of the high static pressure reading. By installing a new Pressure Regulating Valve at the water meter, the plumber simultaneously achieved two crucial outcomes:

  • Flow Restoration: The low water pressure issue was immediately resolved, returning taps and showers to their original performance.
  • System Protection: The new valve brought the system back into compliance, protecting all internal pipes, appliances, and fixtures from damage caused by 900 Kpa stress.

The homeowner confirmed that his water pressure and flow were perfectly restored, giving him the peace of mind that his home was protected.

Your Choice Plumbers – Home Plumbing Experts – Masters of Diagnostics

This job in Ashburton, VIC 3147, highlights the high level of expertise required to troubleshoot complex plumbing problems. Our team’s ability to pinpoint the PRV as both a compliance failure and a flow restriction is the key to providing a lasting solution. We proudly service Ashburton and surrounding suburbs, including Glen Iris, Malvern East, and Chadstone.

For compliant Pressure Reducing Valve installation/replacement and expert plumbing services in Ashburton, contact Your Choice Plumbers Ashburton – Home Plumbing Experts today for a fast and reliable service you can trust. Call us now on 1300 852 779.