What’s that hammering noise?

Why do I hear a hammering noise coming from my pipes? Is this a common plumbing issue and how can Doherty Plumbing Solutions help?

Emergency plumbing Glen Waverley

An anxious customer from Glen Waverley reached out to us, suspecting a fault in their hot water plumbing connection. They had heard strange noises coming from the pipework when the hot water taps were turned off in their laundry, bathroom and powder room.

Doherty Plumbing Solutions’ licensed plumbing professional George was at the scene to resolve the problem.

After an inspection, George detected the cause of the noise was water hammer occurring inside the connection.

He looked into the Aquamax gas storage heater unit outside the building and located the faulty duo valve that was quite old. After isolating the water supply, George replaced the old valve and re-connected the supply line directly to hot water outlet. Then, the plumbing fixtures inside the house were all tested. The situation was much improved!

Well done, George.

What is ‘water hammer’ effect?

Water hammer, or hydraulic shock, involves a sudden shock experienced by the water flow inside a pipeline, after it has encountered a blockage (such as a shut-off valve). Once the flowing water hits this block, the water molecules’ tendency is to retrace their flow in the opposite direction, when they collide with the incoming molecules. This sudden change in direction of the water creates a huge pressure surge moving pipes, causing a banging sound.

How can high water pressure damage pipes?

The increased pressure build-up due to a water hammer effect can not only damage pipelines, but also cause cracks that lead to water leaks. They can even harm the various valve systems in the plumbing connections, snowballing into additional effects on connected appliances. For example, it can blow off the diaphragm in pressure tanks resulting in irregular water flow, or affect water meters.

How to tackle the water hammer issue?

It is crucial to maintain the pipelines regularly with the help of professional services, such as Doherty Plumbing Solutions. Undertaking checks of the pipework, ensuring there are no blockages, and fitting pipes in correct alignment, are important first steps that can help in the long run.

Additional measures could also include the following:

  • Fitting valves that close slowly to prevent sudden blockage.
  • Ensuring pipelines have built-in provisions for air chambers, which act as shock absorbers to reduce the effects of accumulating pressure.

Who can help with water hammer issues?

Don’t let a water hammer issue cause extensive damage to the plumbing connections and fixtures. Act fast, TODAY!

At Doherty Plumbing Solutions, we are here to help you tackle the bang and prevent a potential disaster in your home or business.

Contact our team at:

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    Responsive, reasonably priced and pleasant to deal with. Have used several times in the past and will continue to do so.
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    Fiona Walliss
    9/13/2024
    Highly recommended 10/10. On time . Courteous guy , friendly and polite. In lead up to him arriving I was kept in the loop during the whole process. Cost I was amazed it was so reasonable. Being screwed in the past by tradesmen this plumbing service made me realise honest tradesmen are still around. Thanks. Guys.
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    Gazza East Melbourne
    3/30/2024
    James scheduled the job and confirmed the appointment time within hours and George fitted our toilet which involved significant modifications to the floor as well as inlet/outlet positioning. He was punctual,obliging and professional. I highly recommend Doherty to anyone requiring plumbing services. In addition the fee was competitive and reasonable. Thank you guys,you will be our go-to for future jobs.
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    Gerald Galatis
    12/30/2023
    Always reliable and responsive we have used them on multiple tasks.Matt installed a modem toilet onto a vintage drain without difficulty. I have recommended them to my friends
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    John Moore
    7/13/2024
    The team from Doherty Plumbing responded promptly to my emergency call to unblock the sewer drain in our backyard. Tim and Angus were professional, courteous and thorough in their work. I highly recommend this business to take care of your plumbing issues.
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    12/30/2023
    Great experience - notified me when they were coming and knew exactly how to fix a difficult problem in lightning time.
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    The Crack
    4/23/2024
    Communication pre visit was excellent. Yarra Valley water representative said that the problem was on our property and that you should have fixed it. We’re unsure about that and pleased that it was fixed promptly.
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    Jane Woodman
    1/13/2025
    Of the many plumbing services they offer, this is the second time I've engaged them for different types of work. James has been very helpful and efficient in scheduling a time for a roof leak repair. Very pleased that the work was completed promptly. Trust that they have addressed the issues at hand.
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    tjokro aminoto
    12/13/2024
    The 3rd time I have used the Doherty team for Plumbing issues and I highly recommend them! Responsive, professional, polite and reasonably priced, all make for a great experience.
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    Matt Lane
    2/29/2024
    Doherty plumbing work was excellent. Very responsive, arrived on time and fixed the issue quickly. Brian and his crew kept me informed at every step and I could not be happier with the end result.
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    Anne-Marie Cook
    1/13/2025
    For reliable plumbing services, call 03 9877 5775 or 0417 577 432