What do you get when extreme heat, high mains pressure, and a tired old valve meet?
Apparently… the sound of a very unhappy pig crossed with distant church bells. And that’s exactly what Darius walked into on this 40+ degree day in Perth.
Our customer called us out after noticing their external plumbing valve was making a loud screeching sound — an unbearable high-pitched noise that echoed through the property.
🔍 Diagnosing the Problem
The first step was to determine what was causing the noise. After some investigation, Darius confirmed:
- The incoming water pressure was extremely high — over 1000kPa
- The existing valve technically could handle it (as confirmed by RMC), but it was clearly struggling
- The sound was being caused by vibrations under pressure — a common issue with high-pressure mains and older or undersized valves
🔧 The Solution: Install a Pressure Limiting Valve
To protect the system and eliminate the noise, Darius installed a 500kPa pressure limiting valve at the property’s water meter. This:
- Significantly reduced stress on the valve and fixtures
- Brought the system within safe pressure limits
- Immediately stopped the screeching noise
💬 “As soon as we dropped the pressure, the noise was gone — no more squealing.”
⚡ Safety First: Earthing the Copper Pipes
Because the water meter had to be temporarily removed during the installation, Darius followed standard safety procedures:
- Attached a jumper lead to safely bridge the copper pipework
- Prevented potential electric shock risk, as copper plumbing is often earthed in residential properties
✅ Final Result: Quiet Pipes and a Safer Plumbing Setup
After installing the pressure limiting valve and testing the system, the result was:
- A perfectly functioning valve
- No more strange noises
- Long-term protection for the home’s plumbing
Another satisfied Perth homeowner — and another case of Plumbdog solving the cause, not just the symptom.
🐾 Think Your Water Pressure Might Be Too High?
If you’re hearing strange pipe noises, valve screeching, or noticing excess wear on taps and fixtures — your property could be receiving excessive mains pressure.
👨🔧 Call the real plumbers with all the gear and every idea.
🐶 No callout fee | ✅ Upfront pricing | 🚿 Pressure Limiting Valve Specialists
