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At ProFlush, we understand the nitty-gritty of plumbing. While the idea of installing a shower mixer might initially appear overwhelming, with the appropriate instructions and advice, you can elevate your DIY plumbing skills significantly. Today, we’re going to walk you through the step-by-step process of how to install a shower mixer plumbing.

Table of Contents

Understanding the Shower Mixer

In Australia, water heating is the second-largest segment of household energy use, accounting for around 21% according to the Department of Industry, Science, Energy and Resources. That’s why a shower mixer can be such a useful device in your home. It gives you precise control over your shower’s water temperature, providing a comfortable and energy-efficient experience.

A shower mixer works by receiving both hot and cold water, which it combines into a single output based on your preferred settings. This contrasts with traditional shower setups, where you manually adjust the hot and cold taps to reach your desired temperature. The key benefit here is comfort and convenience, but it’s also a safety measure. There’s a significantly lower risk of accidental burns compared to regular shower setups.

Why You Might Need to Install a New Shower Mixer

Now you might wonder why would you need to install a new shower mixer? Well, several reasons might prompt this.

Renovating or Upgrading Your Bathroom: If you’re renovating your bathroom or upgrading to more modern fixtures, a new shower mixer can make a significant difference. It’s a relatively inexpensive upgrade that can add both functionality and aesthetic appeal.

Existing Mixer Failure: If your existing mixer has failed or is not working as efficiently as it should, replacing it is often the best course of action.

Energy Efficiency: As mentioned earlier, a shower mixer can be a more energy-efficient option. According to the Australian Energy Foundation, such installations can help households save significantly on energy bills.

Importance of Proper Installation

While it’s entirely possible to install a shower mixer yourself, proper installation is crucial. An incorrectly installed shower mixer might not control water temperature efficiently, leading to potential risks and increased energy consumption. It can also lead to water leaks, which can cause significant damage over time.

It’s why the Master Plumbers’ Association of Queensland emphasises the importance of professional plumbing services. If you’re unsure about any step in the installation process, getting a professional like ProFlush to do it for you can be a smart move.

  1. Gather Your Materials

First off, you’ll need the following equipment:

  • A shower mixer
  • Adjustable wrench
  • Screwdriver set
  • Teflon tape
  • Pipe cutter
  1. Shut Off the Water

Before you start, remember to shut off the water to prevent any unwanted surprises. The Australian Government’s Water Efficiency Guide provides useful tips on how to do this efficiently.

  1. Remove the Existing Fixture

Use your adjustable wrench and screwdriver to carefully remove the existing shower fixture. It’s essential to take care not to damage your tiles or wall in the process.

  1. Install the Mixer

Now comes the main event – installing the shower mixer. Be sure to follow the manufacturer’s instructions closely. The Australian Building Codes Board provides standards and regulations for these types of installations.

  1. Check for Leaks

Once you’ve installed your mixer, it’s crucial to check for leaks. Open your water supply and inspect the mixer closely. If you see any leaks, use your Teflon tape to secure the connections.

  1. Install the Shower Head

Finally, install the shower head onto your mixer, ensuring all connections are tight and secure.

That’s it! You’ve successfully installed a shower mixer. To find out more about plumbing best practices, check out our Blog.

According to The Plumbing Industry Climate Action Centre, the DIY plumbing sector in Australia has grown by 20% in the last year, reflecting a growing trend of homeowners taking on these tasks themselves.

However, if you’re unsure or facing difficulties, remember that the ProFlush team is always here to help.


Knowing how to install a shower mixer plumbing can save you time and money, while adding a skill to your DIY repertoire. Yet, it’s crucial to remember that professional help is just a call away. Here at ProFlush, we provide top-quality plumbing services to ensure your installations run smoothly. So, get in touch with us today, and let’s make your plumbing hassle-free!


A shower mixer is a device that combines hot and cold water in a single pipe before it reaches your shower head.

Typically, it takes around 2 to 4 hours, depending on the complexity of the setup.

Absolutely! With the right tools and instructions, you can install a shower mixer yourself.

Firstly, don’t panic. Turn off your water supply and try tightening the connections. If the leak persists, consider contacting a professional.

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