Hot Water Services

A homeowner’s old Bosch 10P hot water system kept failing, leaving her without hot water during high winds and bad weather. Plumbdog was called in for a replacement — but this wasn’t just a simple swap.

The Problem

The old pilot-light system had:
•Frequent outages during high winds
•Poor gas pressure due to location
•Outdated technology prone to failure

The goal: a modern, reliable system that keeps the household comfortable year-round.

The Investigation & Fix

Richard tackled the issue step by step:
•Inspected the old system to understand why it was failing
•Selected a new location closer to the gas meter for optimal pressure
•Installed a modern gas continuous flow system with a dedicated power point
•Tested hot water and gas pressures to ensure safe, compliant operation

“Pilot-light systems are outdated and unreliable. Proper planning, gas sizing, and installation are key for long-term performance.”

The Result

•Continuous flow hot water installed and fully operational

•Safe, compliant gas and water connections

•Homeowner now enjoys reliable hot water even in adverse weather

•Modern system reduces maintenance headaches and energy waste

Location: Mount Lawley, WA
Need expert hot water replacement or plumbing upgrades? Call Plumbdog

Evan’s back in Warwick, WA after a recent emergency weekend callout.

The client had a hidden water leak behind their hot water system. On the day, Evan carried out a temporary repair to stop the leak. This visit was all about the permanent fix.

What Evan Found

•Old polybutylene pipes (grey pipe) in the wall

•Hot pipe rubbing on the timber top plate with no clips

•Pipe eventually wore through, causing a hidden leak

Evan’s Solution

•Removed the hot water unit and wall sheeting
•Replaced both hot and cold pipes with high-quality piping
•Saddled (clipped) them properly to prevent movement
•Reran the pipes neatly over and through the roof space
•Reinstalled and tested the hot water system

The Result

•No more leaks

•Stronger, long-lasting pipework

•Properly clipped and secured installation

•Peace of mind for the homeowner

“Movement equals wear — and wear means leaks. Securing pipes properly saves big headaches later.”

Location: Warwick, WA

Takeaway: Old polybutylene pipework is prone to failure. Always ensure pipes are clipped and secured — shortcuts only end up costing more down the track.

Need help with water leaks or hot water repairs in Perth?
Call the experts – Plumbdog Plumbing

Darius from Plumbdog is out on-site at a large accommodation complex in Perth to troubleshoot major commercial hot water issues — and this setup is no small job! With three huge Thurman 32 water heaters running on a circulating ring main, this system provides hot water for dozens of guests… when it’s working properly.

The Problem

The property reported inconsistent hot water and low flow, and it didn’t take long for Darius to find the culprits:
•A failed Grundfos circulating pump stopping the ring main flow
•An electrical fault preventing both pumps from running correctly
•Corrosion and missing pressure relief protection on the system

The Fix

To get everything running safely and efficiently again, Darius:
•Installed new Grundfos dual pumps for reliability and redundancy
•Added an expansion control valve to prevent over-pressurisation
•Cleaned and checked all pipework and connections for corrosion
•Tested system operation — restoring 96L/min of steady hot water throughout the building

 “Commercial hot water systems need balance — if one component fails, the whole setup suffers. Regular servicing is the key to keeping everything flowing.”

The Result

Hot water fully restored across the complex

Circulation loop now running smoothly with proper pump control

Pressure safely managed with new relief and expansion valves

System protected for the long haul with proper maintenance practices

Location: Perth, WA
Need expert help with your commercial hot water system?