The loo is one of the hardest-working items in your Brisbane home. Due to this constant use, issues may arise more often than not, with running toilets being one of the most common and frustrating problems homeowners face. Can you hear the sound of running water in your bathroom that won’t stop? Or have you noticed that after you flush your toilet, it just keeps running, wasting water and driving up your utility bills? A malfunctioning flush mechanism is probably the culprit.

Whilst a running toilet might seem like a minor annoyance, it can waste hundreds of litres of water daily, significantly increasing your water bills. Understanding the components inside your toilet tank and how they work together is the first step in diagnosing and fixing this common plumbing problem. Many running toilet issues can be resolved with basic DIY repairs, but some situations require professional expertise to prevent ongoing water waste and potential damage.

The toilet tank includes: 

  • Flush button or handle 
  • Flapper 
  • Float ball 
  • Valve 
  • Overflow tube 
  • Refill tube  
Inside a toilet tank

The flush button or handle on your toilet connects to a metal chain attached to the flapper. The flapper controls the flow of water into the bowl when flushed. The flapper opens as the toilet is flushed and allows water to drain from the tank into the bowl.  

So, Why Does Your Toilet Keep Running? 

If you suspect that an internal leak causes the running water, you will need to inspect the tank and examine the condition of all the parts inside. Common causes of a running toilet are: 

  • Cracked or faulty flapper 
  • The flapper chain is too long or short 
  • Incorrect float ball size 
  • Flush button or handle becomes jammed or loose 

Five Things You Can Do to Stop Your Toilet From Running: 

If you are confident in your ability to do basic toilet repairs, follow the simple steps below to fix your leaky toilet. Things you might need: 

  • Cutting pliers 
  • Flathead and Phillips screwdriver 
  • Pliers 
  • Replacement fill valve 
  • Replacement toilet flapper  

Step 1: Turn Off Your Water Supply 

You will need to turn off your water supply before beginning your repairs. The shutoff valve can be found below the toilet bowl. Stopping water from entering and leaving the tank is crucial when repairing your toilet. 

Step 2: Inspect the Fill Valve 

Remove the tank lid and clean the fill valve with warm soapy water. Return the lid and turn the water back on to inspect if there are any leaks.  

Step 3: Inspect the Float Arm and Lift Rod 

The float arm should be straight and attached to both the fill valve and the ball. If the float ball is loose or not lined up with the arm, it may need replacing. The lift rod needs to allow the flapper to position itself properly into the opening. The rod can be adjusted, or a new flapper can be purchased to create a better seal.  

Step 4: Check the Level of Water in the Tank

The tank water level needs to be kept at 2.5cm to 5cm below the overflow tube to allow for optimal function. If the water level needs altering inside the cistern, find the screw that sits on top of the float. Turning this screw to the left will lower the float and reduce the water level.  

Step 5: Inspect the Flapper 

You will need to stop the water flow to your toilet for this next step. The flapper must have an airtight seal when sitting on top of the opening, or it will cause the water inside the tank to leak out. Inspecting and cleaning the flapper will indicate whether it is functioning correctly. If needed, remove the faulty flapper and replace it. You can find these at any local hardware or home improvement store. 

Still Running?

If you’ve carried out these DIY repair steps yourself and your toilet is still running persistently, it might be time to bring in professional help. Whilst many running toilet issues can be fixed with basic repairs, some problems indicate deeper plumbing issues that require expert diagnosis and repair. Continuous running despite replacing the flapper, persistent leaks you cannot locate, or water appearing around the base of the toilet all suggest problems beyond simple component failures that may require a water leak emergency response.

For Brisbane homeowners experiencing persistent running toilets, especially if the problem occurs outside regular business hours or is accompanied by flooding or other urgent issues, calling an experienced emergency plumber brisbane service ensures rapid professional resolution. The Brisbane Plumbers can thoroughly inspect your toilet, identify the root cause, and provide lasting repairs that stop water waste and prevent potential water damage. Our licensed plumbers have the expertise and specialized tools to diagnose complex toilet problems quickly, taking the stress off you and ensuring the repair runs smoothly whilst saving you money on wasted water.