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Solving Common Toilet Flushing Issues

At Ezy-Plumb, we understand the frustration that comes with a toilet that won’t flush. It’s a common household problem that can disrupt your daily routine.

In this comprehensive guide, we will provide you with expert advice and solutions to resolve this issue efficiently. Say goodbye to the inconvenience of a non-flushing toilet with our step-by-step instructions.

Understanding the Problem

Toilet Flush Mechanism

To tackle the problem effectively, it’s crucial to understand how a toilet flush works. The flush mechanism typically consists of several key components, including:

  • Flush Handle: This is the lever that you push or pull to activate the flush.
  • Flapper Valve: The flapper is a rubber stopper at the bottom of the tank. It lifts when you flush, allowing water to flow into the bowl.
  • Fill Valve: The fill valve controls the water level in the tank. It refills the tank after each flush.
  • Overflow Tube: This tube prevents the tank from overfilling by directing excess water into the bowl.
  • Flush Tank: The tank holds a reservoir of water that is released during flushing.

Common Causes of a Toilet That Won’t Flush

1. Clogged Toilet

A clogged toilet is one of the most common reasons for flushing problems. When foreign objects or excessive toilet paper block the drain, water cannot flow properly, resulting in a weak or incomplete flush.


To resolve a clogged toilet:

  1. Use a plunger to create a seal around the drain and apply firm, even pressure.
  2. Alternatively, you can use a toilet auger to break up the blockage.
  3. If the clog persists, consider using a chemical drain cleaner, following the manufacturer’s instructions.

2. Low Water Level

Insufficient water in the tank can lead to a weak flush. This can happen if the fill valve is not functioning correctly or if there’s an issue with the water supply.


To address low water levels:

  1. Check the water supply valve located behind or beside the toilet. Ensure it’s fully open.
  2. Inspect the fill valve for any damage or obstructions. Replace it if necessary.
  3. Check the water supply is turned on and that other taps are working. If so, you might need to replace your toilet cistern.

3. Broken Flapper Valve

A damaged or deteriorated flapper valve can prevent the proper release of water into the bowl, resulting in a weak flush or no flush at all.


To replace a faulty flapper valve:

  1. Turn off the water supply to the toilet.
  2. Drain the tank by flushing and holding down the handle.
  3. Remove the old flapper valve and replace it with a new one of the same size and type.
  4. Turn the water supply back on and test the flush.

4. Blocked Vent Pipe

The vent pipe allows air to enter the plumbing system, ensuring efficient flushing. If it becomes clogged, it can disrupt the flushing process.


To address a blocked vent pipe:

  1. Check your roof for any visible obstructions, such as leaves or debris, and remove them.
  2. If the blockage persists, it may be deeper within the pipe. In this case, it’s advisable to consult a professional plumber.

Regular Toilet Maintenance

Prevention is key to avoiding future flushing issues. Here are some tips for regular toilet maintenance:

  • Avoid Flushing Non-Flushable Items: Dispose of items like cotton balls, wipes, and sanitary products in a waste bin, not in the toilet.
  • Check for Leaks: A leaking toilet can waste a significant amount of water and affect flushing. Inspect the tank and bowl for any signs of leakage.
  • Annual Inspection: Consider an annual inspection by a professional plumber to detect and address potential problems before they worsen.

But What If Your Toilet STILL Won’t Flush?

Won’t the toilet flush even after trying everything on our list of common toilet problems? It’s probably time to call in the professionals. The toilet repair experts at Ezy-Plumb understand that plumbing problems are always annoying and sometimes even embarrassing, so don’t worry: we encounter troublesome toilets every day! Better still, we offer fixed and upfront pricing for peace-of-mind and a lifetime labour guarantee, so to get your throne back in running order, give the friendly Ezy-Plumb team a call today!


A toilet that won’t flush can be a hassle, but with the right knowledge and solutions, you can quickly restore it to working order. Remember to promptly address common issues like clogs, low water levels, and damaged components to avoid further inconvenience. Regular maintenance and professional inspections will ensure your toilet continues to function efficiently, providing you with peace of mind in your everyday life.

If you encounter persistent issues or require professional assistance, don’t hesitate to contact us at 0402 169 096 or via email at Our team of experts is here to help you with all your plumbing needs.

Petros Ttofari
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