How to Fix a Cracked Toilet Tank: 5 Expert Solutions

How to Fix a Cracked Toilet Tank

To fix a cracked toilet tank, you need to empty the tank, clean the area around the crack, and apply epoxy adhesive on the crack, allowing it to dry before refilling the tank and testing for leaks. A cracked toilet tank can be a frustrating problem to deal with, but it doesn’t always require a costly replacement.

By following a few simple steps, you can fix the crack yourself and save money. We’ll guide you through the process of fixing a cracked toilet tank, providing you with the necessary steps to get your toilet back in working order quickly and efficiently.

A cracked toilet tank is a common issue that homeowners face, but with the right knowledge and a little bit of effort, it can be fixed easily. Ignoring a cracked toilet tank can lead to water leakage and potential water damage to your bathroom. In this article, we will guide you through the steps on how to fix a cracked toilet tank, including temporary fixes and permanent solutions.

How to Fix a Cracked Toilet Tank

Identifying The Severity Of The Crack

Before attempting to fix a cracked toilet tank, it is important to determine the severity of the crack. This will help you decide whether a temporary fix or a permanent solution is needed. Here are a few signs to look for:

Visible Crack If you notice a visible crack on the surface of the toilet tank, it is likely a smaller crack. These cracks can sometimes be repaired with temporary fixes.
Leaking Water If water is leaking from the crack, it indicates a more severe crack that requires immediate attention. In such cases, a permanent solution is necessary.
Crack Length The length of the crack is also a factor in determining severity. Longer cracks are typically considered more serious and may require a permanent fix.

Temporary Fixes For A Cracked Toilet Tank

If the crack in your toilet tank is minimal and not leaking water, you can try these temporary fixes:

  1. Epoxy Putty: Apply a layer of epoxy putty over the crack and smooth it out. This will help seal the crack and prevent further damage.
  2. Waterproof Tape: Use a waterproof tape specifically designed for plumbing repairs. Wrap the tape tightly around the crack to provide a temporary seal.
  3. Toilet Tank Liner: Consider using a toilet tank liner, which is a flexible liner that covers the entire inside of the tank. This can help prevent leaks and further cracks.

How to Fix a Cracked Toilet Tank

Permanent Solutions For A Cracked Toilet Tank

If the crack in your toilet tank is severe and leaking water, a temporary fix may not be sufficient. It is recommended to opt for a permanent solution, such as:

  • Replacing the Tank: The most effective permanent solution is to replace the entire toilet tank. This ensures a long-term fix and eliminates the risk of further cracks or leaks.
  • Professional Repair: If you are not comfortable replacing the toilet tank yourself, hiring a professional plumber is a viable option. They have the expertise to identify and fix the issue efficiently.

Fixing a cracked toilet tank may seem like a daunting task, but with the right techniques, you can resolve the issue and prevent unnecessary damage to your bathroom. Remember to assess the severity of the crack before proceeding with a temporary fix or a permanent solution. By taking the necessary steps, you can restore the functionality of your toilet and ensure a leak-free bathroom.


Fixing a cracked toilet tank is crucial to maintaining a functioning bathroom. By following these simple steps, you can successfully repair the damage and prevent further leaks or water wastage. Remember to turn off the water supply, drain the tank, and clean the area before applying appropriate sealants or replacing the tank altogether if necessary.

Regular maintenance and prompt repairs help to ensure a well-functioning toilet and a hassle-free washroom experience. Trust the DIY process and tackle this problem with confidence.

Md. Meraj

This is Meraj. I’m the main publisher of this blog. Home Improvement Way is a blog where I share Home Improvement Way tips and tricks, reviews, and guides. Stay tuned to get more helpful articles!

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