If your toilet cistern is leaking or not functioning properly, it may be time to replace it. While this may seem like a daunting task, with the right tools and knowledge it can be done easily within a couple of hours. In this blog, we will go through the step-by-step process of how to replace a toilet cistern in 6 simple steps.
Step 1: Gather Your Tools
Before you start the replacement process, it’s important to gather all the necessary tools and equipment. This will ensure that you have everything you need at hand and won’t have to stop mid-way through the project. Some essential tools you will need include an adjustable wrench, a screwdriver, and a pair of pliers. You may also need some replacement parts such as a new cistern, bolts, washer etc…

Step 2: Turn Off the Water Supply
Before you can start working on the cistern, you will need to turn off the water supply. This can typically be done by turning off the shut-off valve located behind or below the toilet. If you can’t locate the shut-off valve, you may need to turn off the main water supply to your home.
Step 3: Empty and Remove the Old Cistern
Next, you will need to empty and remove the old cistern from the toilet. To do this, flush the toilet and hold down the handle to completely empty the water from the cistern. Then, use your adjustable wrench to loosen and remove the bolts that secure the cistern in place. You may also need to disconnect any water supply lines leading to the cistern.
Step 4: Install the New Cistern
Now it’s time to install the new cistern. Start by placing the rubber gasket at the bottom of the cistern and then carefully place it on top of the toilet bowl. Make sure that the bolts line up with the holes in the toilet bowl. Then, use your adjustable wrench to tighten the bolts and secure the cistern in place.
Step 5: Reconnect Water Supply
Once the cistern is securely in place, it’s time to reconnect the water supply. Make sure that all connections are tight and there are no leaks. If you do notice any leaks, tighten the connections or replace any faulty parts.
Step 6: Turn On the Water Supply and Test
Finally, turn the water supply back on and test your new cistern. Flush the toilet a few times and check for any leaks or malfunctions. If everything looks good, you have successfully replaced your toilet cistern!
In conclusion, replacing a toilet cistern may seem like a daunting task, but with these 6 easy steps, you can easily do it yourself. Just remember to gather all necessary tools, turn off the water supply, carefully install the new cistern, and test for any leaks or malfunctions. With a bit of patience and know-how, you’ll have a functioning toilet in no time! However, if you do face an issue, it is always best to call a professional plumber Glen Waverley for assistance.
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