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Resolving Hot Water Issues – A Case Study by Plumbing Angels

At Plumbing Angels, we pride ourselves on providing quick, efficient, and thorough solutions to all plumbing problems. Recently, we were called in to help a client who was experiencing issues with their hot water supply. Here’s a detailed look at how we diagnosed and resolved the issue.

The Problem

Our client reported that there was no hot water at their outlet. Initial testing showed an initial burst of pressure, which quickly died out. This indicated a possible blocked filter. After further inspection, we pinpointed the issue to a blocked combi valve in the unvented cylinder.

Our Solution

  1. Diagnosis:

    • We began by thoroughly testing the hot water system, confirming that the issue was likely due to a blockage.
    • Inspection of the unvented cylinder revealed a blocked combi valve.
  2. Valve Replacement:

    • We installed a new combi valve to replace the blocked one.
    • To ensure a perfect fit and function, we adapted the pipework accordingly.
  3. Lever Valve Replacement:

    • During our inspection, we also found that two lever valves were not working properly.
    • We replaced these faulty lever valves with new ones to ensure the entire system was functioning optimally.
  4. Final Testing:

    • After reinstalling the new valve and adapting the pipework, we reinstated the water supply.
    • We conducted a thorough test to ensure that the hot water was flowing smoothly and that there were no leaks.


The client’s hot water supply was restored to full functionality. The initial burst of pressure problem was resolved, and the water flow was consistent and strong. By addressing both the combi valve blockage and the faulty lever valves, we ensured a comprehensive fix that would provide lasting results.


At Plumbing Angels, we are dedicated to solving plumbing issues efficiently and effectively. Whether it’s a simple fix or a complex problem, our team is equipped with the knowledge and tools to get the job done right. If you’re experiencing any plumbing issues, don’t hesitate to contact us. We’re here to help!

If you’re dealing with hot water issues or any other plumbing problems, reach out to Plumbing Angels today. Our experienced team is ready to provide the expert service you need to keep your home running smoothly.

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