How to Repair a Cracked Toilet Tank

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How to Fix a Crack Toilet Tank

A cracked toilet tank is a common problem, but it’s one that’s easy to fix. With a few simple tools and some basic know-how, you can have your toilet back in working order in no time.

In this article, we’ll walk you through the steps of repairing a cracked toilet tank. We’ll cover everything from identifying the problem to choosing the right materials and tools. We’ll also provide tips on how to prevent future cracks from occurring.

So if you’re dealing with a cracked toilet tank, don’t despair. Just follow these steps, and you’ll be back to flushing in no time.

Step Tools Instructions
1. Gather your tools – Adjustable wrench – Pliers
2. Turn off the water supply to the toilet – Locate the water supply valve under the sink or behind the toilet. – Turn the valve clockwise until it is completely closed.
3. Remove the old tank lid – There may be two screws on the back of the tank lid. – Remove the screws with a screwdriver.
4. Inspect the tank – Look for cracks in the tank or the bowl. – If you see a crack, you will need to replace the entire tank.
5. Replace the tank – Remove the old tank from the toilet. – Place the new tank on the toilet.
6. Connect the water supply – Turn the water supply valve back on. – Flush the toilet to make sure there are no leaks.

How To Fix A Crack Toilet Tank?

Identifying the Crack

The first step to fixing a cracked toilet tank is to identify the crack. This may seem like a simple task, but it’s important to be thorough in order to ensure that you’re addressing the problem correctly.

Here are a few things to look for:

  • A visible crack in the tank. This is the most obvious sign of a crack, and it’s usually easy to spot. However, it’s important to note that not all cracks are visible.
  • A leak from the tank. If you see water leaking from the tank, it’s a good indication that there’s a crack. The leak may be coming from the bottom of the tank, the side of the tank, or the overflow pipe.
  • A change in the sound of the toilet flushing. If your toilet is making a different sound when it flushes, it could be a sign of a crack. The sound may be louder or more gurgling than usual.
  • A change in the water level in the tank. If the water level in the tank is constantly dropping, it could be a sign of a leak.

Once you’ve identified the crack, you can move on to choosing the right repair method.

Choosing the Right Repair Method

There are a few different ways to repair a cracked toilet tank. The best method for you will depend on the size and location of the crack.

Small cracks can often be repaired with a simple epoxy patch. Epoxy patches are available at most hardware stores. To use an epoxy patch, follow these steps:

1. Clean the area around the crack with a damp cloth.
2. Apply a thin layer of epoxy to the crack.
3. Allow the epoxy to dry completely.
4. Apply a second coat of epoxy, if necessary.

Large cracks or cracks that are located in a difficult-to-reach area may require a more involved repair. One option is to use a fiberglass repair kit. Fiberglass repair kits are available at most hardware stores. To use a fiberglass repair kit, follow these steps:

1. Clean the area around the crack with a damp cloth.
2. Apply a thin layer of fiberglass resin to the crack.
3. Apply a layer of fiberglass cloth over the resin.
4. Allow the resin to dry completely.
5. Apply a second layer of fiberglass cloth, if necessary.

Another option for repairing large cracks is to use a toilet tank repair kit. Toilet tank repair kits are available at most hardware stores. To use a toilet tank repair kit, follow these steps:

1. Clean the area around the crack with a damp cloth.
2. Apply a thin layer of silicone sealant to the crack.
3. Apply a patch from the repair kit over the sealant.
4. Allow the sealant to dry completely.

No matter which repair method you choose, it’s important to follow the manufacturer’s instructions carefully. This will help ensure that the repair is successful and that your toilet will function properly.

Fixing a cracked toilet tank is a relatively simple task that can be completed in a few hours. By following the steps in this guide, you can have your toilet back in working order in no time.

Additional Tips

  • If you’re not comfortable doing the repair yourself, you can always hire a professional plumber.
  • Before you start the repair, make sure you have all of the necessary tools and materials.
  • Be careful not to damage the toilet bowl or other parts of the toilet during the repair.
  • Once the repair is complete, test the toilet to make sure it’s working properly.

3. Carrying Out the Repair

Once you have chosen the best repair method for your cracked toilet tank, you can begin the repair process. The following steps will walk you through each method in detail.

Method 1: Applying Epoxy Putty

1. Gather your materials. You will need the following materials for this repair method:

  • Epoxy putty
  • A putty knife
  • A clean cloth
  • Safety glasses

2. Prepare the crack. Clean the crack thoroughly with a clean cloth to remove any dirt or debris. Be sure to wear safety glasses to protect your eyes from the epoxy putty.

3. Apply the epoxy putty. Apply a thin layer of epoxy putty to the crack, using the putty knife to smooth it out. Be sure to cover the entire crack, and to overlap the edges by about 1/2 inch.

4. Let the epoxy putty cure. The epoxy putty will need to cure for at least 24 hours before it is fully dry. Do not use the toilet during this time.

5. Test the repair. After 24 hours, the epoxy putty should be fully dry. Flush the toilet to test the repair. The crack should be sealed and the toilet should function normally.

Method 2: Using a Toilet Tank Repair Kit

1. Gather your materials. You will need the following materials for this repair method:

  • A toilet tank repair kit
  • A clean cloth
  • Safety glasses

2. Prepare the crack. Clean the crack thoroughly with a clean cloth to remove any dirt or debris. Be sure to wear safety glasses to protect your eyes from the repair kit materials.

3. Apply the repair kit. Follow the instructions on the repair kit to apply the sealant to the crack. Be sure to apply the sealant evenly and to overlap the edges of the crack by about 1/2 inch.

4. Let the sealant cure. The sealant will need to cure for at least 24 hours before it is fully dry. Do not use the toilet during this time.

5. Test the repair. After 24 hours, the sealant should be fully dry. Flush the toilet to test the repair. The crack should be sealed and the toilet should function normally.

Method 3: Replacing the Toilet Tank

1. Gather your materials. You will need the following materials for this repair method:

  • A new toilet tank
  • A wrench
  • A screwdriver
  • A bucket
  • Plumbing tape
  • Safety glasses

2. Disconnect the water supply. Turn off the water supply to the toilet. This is usually located under the sink or behind the toilet.

3. Drain the water from the toilet tank. Flush the toilet to drain the water from the tank.

4. Remove the old toilet tank. There are two bolts that hold the toilet tank to the toilet bowl. Use a wrench to loosen these bolts and remove the tank.

5. Install the new toilet tank. Place the new toilet tank on top of the toilet bowl. Secure the tank to the bowl with the two bolts.

6. Reconnect the water supply. Turn on the water supply to the toilet.

7. Test the toilet. Flush the toilet to test the repair. The toilet should function normally.

4. Testing the Repair

Once you have completed the repair, it is important to test it to make sure it is successful. Here are a few things to check:

  • The toilet should flush normally. The water should flow smoothly into the bowl and the toilet should empty completely.
  • There should be no leaks. Check around the toilet tank and bowl for any leaks. If you see any leaks, you will need to re-do the repair.
  • The toilet should be stable. The toilet should not wobble or move when you sit on it. If the toilet is unstable, you may need to tighten the bolts that hold it to the floor.

If the toilet passes these tests, the repair was successful. You can now enjoy your toilet without having to worry about the crack.

A cracked toilet tank can be a major inconvenience, but it is a relatively easy repair that you can do yourself. By following these steps, you can fix your cracked toilet tank and get back to using it in no time.

Here are some additional tips for preventing future cracks:

  • Install a toilet tank shield. A toilet tank shield is a thin piece of plastic that fits over the inside of the toilet tank. It helps to

    How do I fix a crack in my toilet tank?

1. Turn off the water supply to the toilet. This is usually located under the sink or behind the toilet.
2. Flush the toilet to empty the tank.
3. Remove the lid of the toilet tank. There will be two bolts on the back of the tank that you need to unscrew.
4. Inspect the crack. The crack is most likely located on the bottom of the tank. If the crack is small, you can try to repair it with a toilet repair kit. If the crack is large, you will need to replace the toilet tank.
5. Follow the instructions on the toilet repair kit to apply the sealant. Allow the sealant to dry completely before using the toilet.
6. Replace the lid of the toilet tank.
7. Turn the water supply back on to the toilet.

What are the signs of a cracked toilet tank?

  • Water leaking from the bottom of the tank
  • A whistling sound coming from the tank when the toilet is flushed
  • The toilet bowl not filling up all the way
  • The toilet flushing slowly

How can I prevent a cracked toilet tank?

  • Install a toilet tank protector. This is a rubber or plastic shield that fits over the bottom of the tank and helps to protect it from damage.
  • Don’t drop anything heavy into the toilet tank. This can cause the tank to crack.
  • Be careful when tightening the bolts on the toilet tank lid. Over-tightening the bolts can damage the tank.
  • Inspect the toilet tank regularly for cracks. If you see a crack, have the tank repaired or replaced as soon as possible.

How much does it cost to fix a cracked toilet tank?

The cost of repairing a cracked toilet tank depends on the size and type of the tank, as well as the extent of the damage. A small crack can be repaired for around \$50, while a large crack or a complete tank replacement can cost up to \$200.

Can I fix a cracked toilet tank myself?

Yes, you can fix a cracked toilet tank yourself if the crack is small and the damage is not too extensive. However, if the crack is large or the tank is damaged beyond repair, you will need to have it replaced by a professional plumber.

What are the risks of not fixing a cracked toilet tank?

If you do not fix a cracked toilet tank, it can leak water and cause damage to your home. The leak can also create a health hazard by allowing bacteria to grow in the toilet bowl. In addition, a cracked toilet tank can be dangerous if it breaks completely and someone falls into the toilet.

In this blog post, we have discussed how to fix a cracked toilet tank. We have provided a step-by-step guide on how to identify the problem, remove the tank, repair the crack, and reinstall the tank. We have also provided some tips on how to prevent future cracks from occurring.

We hope that this blog post has been helpful. If you have any questions, please feel free to leave a comment below.

Author Profile

Liana Farrell
Liana Farrell
Liana Farrell is the owner of toiletty.com. She is a mom of two and is very passionate about home improvement.

Liana has ten years of home improvement experience, and in her own words, she said: “I love improving the home, and I’m very passionate about keeping the home in the best possible condition. I love it!”

Liana Farrell balances beauty and functionality when she goes about her home improvement jobs.