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  • Writer's pictureMr Plumber

Question and Answers for Toilet Leak Repairs in Melbourne

Updated: Jul 17, 2023


The average person probably doesn't think about the stress of toilet leaks, but for property owners, it can be a major issue. A single leak can cause water damage that can cost thousands of dollars to repair.


In addition, a leaky toilet can also lead to high water bills and even mould growth. If you're experiencing a toilet leak, it's important to take action right away to minimise the water damage.


There are many reasons why a toilet may start to leak. It could be that the wax seal around the base of the toilet has failed, the water supply line may be leaking, or the flapper valve may not be sealing properly. It’s important to know what type of leak you're dealing with since each type of leak will require a different type of repair.

You can try replacing the flapper valve, replacing the wax seal, and a bunch of other toilet leak repairs. But the truth remains the same. Dealing with a leaky toilet can be a big mess and an even bigger headache.


Is a Plumber Always Needed for Toilet Leak Repairs?


Plumber uses plunger to fix blocked toilet.
Calling a plumber is often the most affordable and hassle-free option.

A toilet leak can be a big problem if left unfixed. It can waste water and cause major water damage to your home.


Granted, there are some simple things you can do to try to fix a toilet leak yourself. However, plumbing is a complex and specialised field. A plumber has years of experience and training in dealing with all sorts of toilet leak repairs, from simple leaks to more complicated repairs.

Plus, trying your hand at toilet leak repairs can have disastrous consequences. If you don’t know what you are doing, you could easily damage your plumbing or worse, even cause a gas leak.


And what most people don’t know is that fixing a toilet leak can be expensive if you don’t have the right tools and knowledge. Calling a plumber is often the most affordable and hassle-free option.


Common Toilet Leaks


Toilets are one of the most common sources of water leaks in the home. A leaky toilet can waste up to 200 gallons of water per day, which can add up quickly to your water bill. But several common toilet leaks can usually be diagnosed and fixed relatively easily. Here are some of them:

  • Faulty water supply line - If this line cracks or leaks, water will flow out and create a mess on the floor. The best way to prevent this type of leak is to check the line for cracks or damage regularly and replace it if necessary.

  • Cracked toilet tank - Age, wear, thermal expansion and contraction, and over-tightening of the bolts can cause a cracked toilet tank. You can fix this by using epoxy resin.

  • Loose or worn-out seal at the base - To fix the leak, you need to remove the toilet first before you can replace the seal. If you're not comfortable removing the toilet and replacing the seal yourself, you can always hire a professional plumber to do the job for you.


What Is the Most Common Toilet Leak?

A leaking toilet.
To fix this common toilet leak, you must turn off the toilet’s water supply. You can do so by turning the valve at the back of the toilet.

The most common toilet leak is a worn-out flapper valve. If your flapper valve is old or worn, it may not close properly and could be the source of your leak. You can test to see if your flapper valve is the problem by pouring a bucket of water into the toilet tank and watching to see if it leaks out around the base. If it does, then you know that the flapper valve is the culprit and needs to be replaced.


To fix this common toilet leak, you must turn off the toilet’s water supply. You can do so by turning the valve at the back of the toilet. Proceed to flush. Keep in mind that you must hold down the handle to drain as much water as possible.


Next, you must remove the tank lid and set it aside. Once you locate the flapper valve, remove it by unscrewing it from the top of the tank. Proceed to install a new flapper valve by screwing it into place and making sure that it is properly aligned.


Finally, you can turn on the water supply and flush the toilet to check for leaks.


What to Do when you have a Toilet Leaking Base?


When you have a toilet leaking base, the first thing you should do is find the source of the leak. Often, the source is easy to find because there will be water pooled around the base of the toilet.


Once you've found the source, you can begin to make repairs. If the leak is coming from a crack in the porcelain, you can try to fix it with epoxy. If the leak is coming from a seal around the base of the toilet, you may need to replace it.


Be sure to shut off the water supply before making any repairs to avoid flooding your bathroom.


What to Do when a Toilet Leaking is From the Bottom


Plumber tasks to fix toilet.
If you're not comfortable making repairs yourself, never hesitate to call a plumber.

If your toilet is leaking from the bottom, don't panic. There are a few things you can do to fix the toilet leak.


First, check to see if the leak is coming from the tank or the bowl. If it's coming from the tank, it's likely that a seal needs to be replaced. If it's coming from the bowl, it could be cracked porcelain or a loose connection.


If you're not comfortable making repairs yourself, never hesitate to call a plumber. They'll be able to quickly fix the problem and have your toilet back up and running in no time.


How to Tell if Toilet Is Leaking Underneath


Toilets can leak from a few different places. It's important to know how to tell if the toilet is leaking underneath.


There are a few ways to check for leaks under your toilet. First, see if the water is coming from the bolts that hold the toilet to the floor. If these are loose or damaged, they may be causing the leak.


You can also remove the lid of the tank and look inside. If you see water on the bottom of the tank, there's likely a leak in the gasket or flush valve.


How Do You Fix a Toilet That Is Leaking From the Bottom?


To fix a toilet that is leaking from the bottom, you can use a wrench to tighten the bolts that hold the tank to the bowl. Finally, turn the water back on and test the toilet by flushing it again. If there are no more leaks, then consider your toilet repair operation a success.


If that doesn’t work, you may need to replace the rubber gasket that seals the connection between the tank and the bowl. You must remove the bolts located at the base of the tank. Once the bolts are removed, lift off the tank and set it aside.


Now you should be able to see the rubber gasket that needs to be replaced. Simply remove the gasket and replace it with a new one. Be sure to position it correctly before replacing the tank and bolts.


How to Stop a Toilet From Running


Toilet and tool kid.
When your toilet is running, the problem is most likely with the flapper or the float. If the flapper is not sealed properly, water will leak from the tank into the bowl.

Knowing how to stop toilet from running can save you from wasting gallons of water a day.


When your toilet is running, the problem is most likely with the flapper or the float. If the flapper is not sealed properly, water will leak from the tank into the bowl. If the float is set too low, water will also keep running into the bowl.


You can adjust both of these things to stop your toilet from running.


How to Fix a Toilet When Leaking Into the Bowl


There are a few solutions on how to fix a toilet leaking into the bowl. First, check to see if the leak is coming from the tank or the bowl. If it's coming from the tank, you'll need to replace the flush valve. If it's coming from the bowl, you'll need to shorten the refill tube.


To shorten the refill tube, start by turning off the water supply to your toilet. Then, flush the toilet and hold down the handle to empty as much water from the tank as possible. Next, remove the lid and find the fill valve. Disconnect the refill tube from the fill valve and cut it down to size with a pair of scissors. Finally, reattach the refill tube and turn on the water supply.


Common DIY Solutions for How to Fix a Leaking Toilet


Several DIY solutions focus on how to fix a leaking toilet. Here are some of them:


  • Use silicone caulk and epoxy putty.

For cracks in the tank, you can try to repair them with silicone caulk and epoxy putty. If the leak is coming from the base of the toilet, it may be due to a bad seal between the toilet and the floor. To fix this, simply apply a bead of silicone caulk around the base of the toilet.

If the leak is coming from a crack in the bowl, you can use epoxy to repair it. Apply the putty to the crack and let it dry. Once it's dry, flush the toilet to test for leaks.


  • Adjust the water level in the tank.

One of the go-to solutions for most homeowners, when faced with a leaking toilet, is adjusting the water level in the tank. The water level should be about an inch below the overflow tube in the tank. You can adjust the water level by turning the adjusting screw in the centre of the fill valve clockwise or counterclockwise.


  • Replace the flapper valve once damaged or worn.

If your flapper valve is damaged or worn, it may not seal properly, which can lead to water being wasted every time you flush the toilet. Once you've replaced the flapper valve, your toilet should be good as new.


  • Clean or replace the fill valve.

Check the fill valve. If this valve is not functioning properly, water will continue to leak out of the tank.


If you choose to clean the fill valve, you'll need to remove it from the tank and disassemble it. Clean all of the parts with a brush and vinegar. Once everything is clean, reassemble the fill valve and put it back in the tank.


If you decide to replace the fill valve, you'll need to turn off the water supply to your toilet. Then, flush the toilet to empty the tank. Remove the old valve and install a new one in its place. Once everything is hooked up, turn on the water supply and flush the toilet again.


How to Fix a Leaking Toilet Cistern


Toilet cistern flapper.
Once you've identified and fixed the source of the leak, make sure to test your repair by flushing the toilet several times.

When fixing a leaking toilet cistern, you must first identify the source of the leak. Is it coming from the water supply valve? If so, turn off the water supply to the toilet and replace the valve.


If the leak is coming from the flush valve, remove the cap from the flush valve and tighten the screws. If the leak is coming from somewhere else, you may need to replace one or more of the seals in your toilet cistern.


Once you've identified and fixed the source of the leak, make sure to test your repair by flushing the toilet several times. If you still have a leaking toilet cistern after all of that, then you may need to call a plumber for further assistance.


Is Your Toilet Leaking When Flushed?


A leaking toilet is not something to take lightly. If your toilet is leaking when flushed, it's important to figure out the cause and fix it as soon as possible.


First, check to see if the leak is coming from the tank or the bowl. If it's coming from the tank, you may need to adjust the ballcock valve or replace the flapper valve. But if it's coming from the bowl, you may need to tighten the bolts that secure the tank to the bowl.


How Much Does It Cost to Fix a Leaking Toilet?


A leaking toilet can be a nuisance and cause your water bill to skyrocket. While there are several DIY solutions for minor leaks, it is best to call a plumber rather than try to fix the leaking problem yourself.


If you try to fix the leak and make a mistake, you could end up spending more money than if you had just called a professional in the first place.


Additionally, it is not so simple to find the source of the leak. A plumber will know where to look and how to fix the problem quickly and efficiently.


The cost of hiring a plumber to fix your leaking toilet will depend on the severity of the leak and its cause. If the leak is small and caused by a simple problem, such as a loose connection, then the repair will be relatively inexpensive. However, if the leak is larger or caused by a more serious problem, such as a cracked pipe, then the repair will be more expensive.


In either case, it is important to hire a qualified plumber to fix the problem so that it does not become worse and cause further damage.


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