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Tips For Diagnosing a Leaking Toilet


Does your toilet constantly run even when you’re not using it? Is your water bill higher than usual? If these issues sound familiar, chances are you’re dealing with a leaking toilet.

One of the more common plumbing repair issues, particularly in residential properties, a leaking toilet can be a nuisance with a few different causes.

If you’ve never dealt with this issue before, it could be challenging to diagnose. Luckily, you can find some helpful information below that will make diagnosing and repairing a leaking toilet a breeze!

How do Toilet Flappers Work?

flapperToilets work based on water pressure and gravity, conveniently removing waste from your home. But how does it work? Behind your toilet, you’ll find the tank that holds all the water you need for a single flush.

Keeping that water in place is the toilet flapper. A flapper is often made from rubber, plastic, or silicone, and is responsible for creating a tight seal around the pipe that leads into your toilet. When you flush the toilet, that flapper opens, forcing water into the toilet, creating the flushing process.

So how can this be the source of the problem? Toilet flappers can deteriorate over age, growing cracks and leaks, which can all allow the water to leak through. Similarly, because they’re often made from soft materials, they can also warp. This will prevent them from creating a tight seal above that pipe.

While some leaks are small enough that they simply create a water leak. In some instances the flapper can be damaged to the point that it won’t allow the tank to refill, preventing you from flushing the toilet. Because toilet flappers are a common cause of leaks, they can also easily be replaced with a newer and more durable model.

What Other Issues Cause Running Toilets?

When the toilet flapper is not the cause of the problem, what else could be to blame? Some other common issues that lead to leaking toilets include:

runningtoiletWorn Seals: Whether it’s the seal around the base of your toilet or the seals that keep water in the holding tank, any damage can lead to a water leak. In many cases, these leaks can lead to water damage in your home, which can be even more costly if left unaddressed.

Old Float: Inside of your toilet is the float, which helps tell your fill valve how much water is needed to refill the tank. If this float is not aligned correctly or is damaged in any way, it could force your fill valve to run constantly, also leading to the sound of running water

Supply Line Leaks: The main water line that runs from your plumbing into your toilet is also susceptible to damage. This line is the one that runs directly behind the toilet and is often accompanied by a valve that lets you open and closes the water supply. If you see condensation in this location, a repair is needed.

When the leaking toilet issue is beyond the flapper, it’s generally a good idea to involve a plumber. A plumber will be able to help you diagnose, locate, and repair these issues in a timely fashion, giving you the peace of mind you deserve in your home.

Your Toilet Maintenance Solution

maintainFor many leaking toilet issues, the best course if always a proactive approach. Plumbing maintenance can go a long way to keep your toilet working properly, while also cutting down on water waste.

At Rapid Plumbing Group we are your Penrith, NSW plumbers of choice. We offer detailed inspections, top-quality repairs, installations, and even take the time to educate you on your home’s plumbing system, so you always have the knowledge you need to keep things running in top shape.