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Common Causes of Leaking Toilets & How to Fix Them

Leaking toilets are not only inconvenient but can also lead to significant water wastage and increased utility bills. They can also cause significant damage to your property if left unaddressed. Understanding the common causes of toilet leaks and how to fix them is crucial for maintaining a functional and efficient plumbing system in your home.

In this blog, we will explore the common causes of leaking toilets, some steps you can take to fix or prevent them and the times that it’s best to call in a professional plumber.

Identifying the Source of the Leaking Toilet

One of the first steps in addressing a leaking toilet is identifying the source of the issue. Leaks often occur at the toilet's base, around the tank, or from the flushing mechanism. The location of the leak can provide important insights into the cause of the leak. This will also help guide you in completing the appropriate repairs or maintenance.

Here are 6 of the most common toilet leaks and their causes:

1. Worn Out Outlet Valve

The flapper valve is a common culprit for toilet leaks. Over time, the rubber can wear out, causing water to seep into the bowl continuously. Replacing the flapper valve is a relatively simple and cost-effective solution.

Ensure to purchase a replacement flapper compatible with your toilet model for optimal performance. Follow the included guidelines for effective installation.

2. Faulty Pan Collar

A pan collar seals the connection between the toilet and the floor drain. If this collar is damaged or improperly installed, water can escape and cause leaks around the base of your toilet. Replacing the pan collar involves lifting the toilet, removing the old ring, and installing a new one. This task is best left to professional plumbers to ensure a proper seal.

3. Loose or Faulty Water Supply Line

Check for any visible leaks around the water supply line connecting the wall to the toilet cistern. A loose or damaged water supply line can result in leaks. Tightening the connections or replacing the supply line with a new one can resolve this issue.

To ensure a secure seal with no leaks, it is best to call in a professional plumber to check your pipes for damage and complete the necessary repairs or tightening.

4. Cracks in the Cistern or Pan

Inspect the toilet cistern and pan for any visible cracks. Cracks can lead to constant water leakage that over time can cause significant damage to your property.

If cracks are detected, replacing the entire toilet might be necessary. A plumbing professional can recommend a suitable replacement and ensure proper and efficient installation.

Minimise Leaking Toilets in Your Home

Addressing leaking toilets promptly is essential for water conservation and avoiding potential damage to your home. While some issues can be resolved through simple DIY solutions, it's crucial to seek professional assistance for complex problems to ensure a thorough and lasting fix. Regular maintenance and inspections can also help prevent future leaks, preserving both your plumbing system and the environment.

For professional assistance with plumbing issues, including toilet leaks, contact Tropical Coast Plumbing today. Our expert team is ready to provide efficient solutions for all your plumbing needs.

"With over 20 years of experience Tropical Coast Plumbing provide the best plumbing service and expert advice in QLD. Your local Plumber for Mackay, Townsville, Rockhampton and Yeppoon"
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