Backflow & TMV Testing and Installation

Protecting Water Safety and Temperature Control Across Central Coast & Lake Macquarie

At Clays Plumbing, we understand the critical importance of water safety and temperature control; especially in commercial, healthcare, childcare, and aged care settings. We provide certified installation, testing, and maintenance services for Backflow Prevention Devices and Thermostatic Mixing Valves (TMVs) to ensure your property complies with all council and water authority regulations.

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What is Backflow Prevention?

Backflow prevention devices are designed to stop contaminated water from flowing back into the public water supply. These systems are essential for protecting our drinking water from harmful chemicals, pathogens, and bacteria.


Commercial and industrial properties across the Central Coast and Lake Macquarie are required by law to have containment backflow prevention systems in place. These must be tested annually by a certified professional to remain compliant with Central Coast Council and Hunter Water regulations.

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Thermostatic Mixing Valves (TMVs)

TMVs are designed to control water temperature at the outlet, mixing hot and cold water to deliver a consistent, safe temperature. This is particularly important in:.


  • Aged care facilities
  • Childcare centres
  • Hospitals and healthcare settings
  • Disability care and group homes



TMVs help prevent scalding injuries while maintaining hygiene and comfort. Like backflow devices, TMVs also require annual testing to ensure ongoing performance and safety.

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Our Accredited Services

Clays Plumbing is fully accredited to carry out the installation, routine testing, and maintenance of both Backflow and TMV devices. We service all properties across:


  • Central Coast Council jurisdiction
  • Hunter Water areas including Lake Macquarie


Our services include:


  • Installation of compliant backflow and TMV systems
  • Annual testing and certification
  • Zone and individual device testing
  • Form submission to local water authorities
  • Troubleshooting and repairs if any issues arise

Never miss a test again

We know how easy it is for annual testing to slip your mind. That’s why we offer a reminder service, notifying you when your devices are due for testing. With Clays Plumbing, you’ll never miss a deadline—or face a non-compliance penalty.

FAQs

  • How can I tell if there’s a gas leak in my home?

    Common signs of a gas leak include a strong smell of rotten eggs, hissing sounds near gas lines, and unexplained increases in your gas bill. If you suspect a gas leak, turn off your gas supply and contact us immediately.

  • Can you install gas appliances in new builds and renovations?

    Yes, we handle gas appliance installations for both new builds and renovation projects, ensuring everything is connected safely and meets regulatory standards.

  • Do you offer gas compliance checks for rental properties?

    Absolutely. We conduct detailed compliance checks for rental properties to ensure all gas systems meet safety standards and legal requirements.

  • What should I do if I suspect a gas leak?

     If you suspect a gas leak, turn off your gas supply, open windows for ventilation, avoid using electrical devices, and call us immediately for assistance

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FAQs

  • Do I need a backflow prevention device on my property?

    If you own a commercial or industrial property, yes—containment backflow prevention is a legal requirement in most council zones.

  • How often do I need to test my TMV or backflow device?

    Annually. We provide testing, lodge the paperwork, and send yearly reminders to keep you compliant.

  • What happens if my device fails the test?

    We’ll notify you of the issue and provide the necessary repairs or replacement to bring your system back up to standard.

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Fully licensed, insured and experienced plumbers and gas fitters. Bringing years of expertise to every job.

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