If you’re faced with a leaking toilet cistern, there’s no need to panic as fixing it is a relatively easy task. In this article, we will provide you with a comprehensive guide on how to fix it. We will start by helping you identify the common causes of leaks, and the tools that you will need. Once you have identified the cause of the leak, we will provide detailed step-by-step instructions on how to fix it. We will also share tips on how to prevent future leaks from happening. By following this ultimate guide, you can save money on plumbing fees, and maintain a well-functioning toilet cistern.
Identify the Cause of the Leak
If you want to fix a leaking toilet cistern, you must first identify where the leak is coming from and what’s causing it. The most common causes of toilet cistern leaks include:
- Cracks in the tank or bowl
- Leaking inlet valve
- Leaking outlet valve
- Worn out washers or bolts
- Loose pipe connections
To identify the cause of the leak, first, remove the lid of the toilet cistern and flush the toilet. Take note of where the leak is coming from and whether it’s a steady or intermittent leak. If the leak is coming from the base of the toilet or the seal where the bowl and the tank meet, then the problem could be a cracked bowl or tank. Otherwise, keep examining the internal components of the cistern for other possible causes.
| Leak Location | Possible Cause |
|---|---|
| Leaking inlet valve | Worn-out washer or faulty valve |
| Leaking outlet valve | Worn-out washer, faulty flapper, or improper seating |
| Condensation on exterior | Water temperature is too cold or hot, causing moisture in the tank to condense on the outer surface |
| Leaking pipes or connections | Loose nuts, bolts, or damaged pipes |
Once you have identified the cause of the leak, you can proceed to fix the leaking toilet cistern. In the next section, we will list the essential tools you need to carry out the repair.
Tools Needed
If you’re planning to fix a leaking toilet cistern, here are the essential tools you will need to get started:
- Adjustable wrench – to loosen or tighten nuts and bolts
- Screwdriver – to remove screws and open covers
- Pliers – to grip and turn small parts
- Replacement parts such as washers, nuts, and bolts – to replace old or damaged parts that may be causing the leak
- Silicone sealant – to seal the cistern to prevent future leaks
Make sure to have all these tools handy before you start to avoid delays and interruptions during the process.
Step-by-Step Guide
Fixing a leaking toilet cistern may seem daunting, but with the right tools and instructions, it can be a fairly simple task. Here is a step-by-step guide on how to fix a leaking toilet cistern:
Step 1: Turn off the Water Supply
The first step is to turn off the water supply to the toilet. This can be done by turning the valve located near the base of the toilet. Flush the toilet to remove any remaining water in the cistern.
Step 2: Empty the Cistern
Next, empty the cistern by scooping out any remaining water with a bucket or sponge. This will allow you to access the internal components of the cistern.
Step 3: Identify the Issue
Inspect the internal components of the cistern to identify the source of the leak. Common causes of leaks include a worn-out flapper, damaged washers or nuts, and cracks in the cistern itself. Check the float ball and arm, inlet valve, and flushing mechanism for any visible damage.
Step 4: Replace Faulty Parts
If you have identified the faulty component, switch off the water supply and replace it with a new one. You may need to use a wrench or pliers to tighten the fixture. Ensure all connections are secure, and there are no loose threads.
Step 5: Seal the Cistern
Once you have replaced all necessary components, seal the cistern with silicone sealant to prevent future leaks. Make sure the sealant covers any visible cracks and gaps in the cistern.
By following these simple instructions, you can fix a leaking toilet cistern and prevent any further water damage. Remember to turn off the water supply before starting any repairs and use caution when handling any fixtures or components.
Step 1: Turn off the Water Supply
Step 1 is a crucial and essential part of fixing a leaking toilet cistern. Before you begin to fix the leak, you need to turn off the water supply to your toilet. This simple step will prevent water from overflowing and potentially causing damage to your bathroom floor or even flooding your home.
To turn off the water supply, locate the valve on the wall behind the toilet. Turn the valve clockwise until it is completely closed. Once that is done, flush the toilet to drain any remaining water in the cistern. After flushing, use a towel or sponge to remove any excess water left in the bowl or cistern.
If you are unsure of where the valve is located or if it is difficult to turn, you may need to call a plumber for assistance. Remember to always turn off the water supply before attempting any repair work and to exercise caution as water and electricity do not mix well.
Step 2: Empty the Cistern
To fix a leaking toilet cistern, the second step is to empty the cistern. You cannot access the internal components of the cistern if it is full of water. Start by turning off the water supply to the toilet using the shut-off valve, usually located behind the toilet. Then, flush the toilet to empty as much water from the cistern as possible. If the cistern does not empty completely, use a bucket to scoop out any remaining water. Be careful not to damage or break any internal components while emptying the cistern. Ensure the area around the toilet is dry before proceeding.
Step 3: Identify the Issue
Step 3 involves identifying the issue behind the leaking toilet cistern. Inspect the internal components of the cistern and look for possible causes. Here are some common problems and how to fix them:
- Problem: Cracked Overflow Pipe. This problem causes water to come out of the cistern onto the floor. Fix: Remove the old pipe and fit a new one, ensuring it is tightly secured.
- Problem: Damaged Float. A damaged or misaligned float causes water to flow into the cistern non-stop, leading to overflow problems. Fix: Adjust or replace the float according to manufacturer instructions.
- Problem: Worn out Washers. Worn-out washers or valves cause water to leak into the toilet bowl. Fix: Replace the worn-out washers and valves with new ones.
Identifying the problem is key to fixing a leaking toilet cistern. Once you have identified the issue, proceed to the next step to address it.
Step 4: Replace Faulty Parts
Replacing faulty parts is essential when fixing a leaking toilet cistern. After identifying the issue, follow these step-by-step instructions:
- Turn off the water supply to the toilet.
- Remove the lid of the cistern and inspect the internal components.
- Identify the faulty parts and remove them using an adjustable wrench, pliers, or a screwdriver, depending on the component.
- Take the faulty parts to a hardware store or plumbing supply center to get the exact replacements.
- Install the new components in the same position as the old ones, tightening the nuts and bolts with the pliers and screwdriver.
- Turn on the water supply and check for any leaks. If necessary, adjust the tightness of the nuts and bolts until the leak stops.
It’s essential to take safety precautions when handling the components in a cistern. Wear protective gloves and avoid using excessive force to avoid damaging other parts. If you’re unsure about how to replace a component, consult a professional plumber.
Step 5: Seal the Cistern
After replacing the faulty parts in the cistern, it’s essential to seal the cistern with silicone sealant. This will prevent future leaks, ensuring that the toilet remains in excellent working condition. Apply the silicone sealant around the edges of the cistern and the top of the bowl. Allow the sealant to dry and cure completely before turning on the water supply. This will prevent the sealant from washing off and causing more leaks. Once the sealant is fully cured, turn on the water supply and let the cistern refill. Check for any leaks and ensure that everything is working correctly before using the toilet again.
Prevent Future Leaks
To prevent future leaks in your toilet cistern, there are a few simple maintenance tips you can follow. First, regularly check for cracks or damage to the cistern and replace any damaged parts immediately. It’s also important to ensure all nuts and bolts are tightened properly to prevent leaks from loose connections.
In addition, keeping the cistern clean and free of debris can help prevent blockages and leaks from buildup. Using a gentle cleaner and avoiding harsh chemicals can also prolong the life of the internal components of the cistern.
Consider installing a water pressure regulator if the water pressure is high, as this can cause damage to the cistern and result in leaks. Lastly, be mindful of what you flush down the toilet, as non-flushable items can cause blockages and damage to the cistern and pipes.
By following these simple tips, you can maintain your toilet cistern and prevent future leaks, saving both time and money in the long run.
Frequently Asked Questions
Fixing a leaking toilet cistern can be a daunting task, but with the right tools and instructions, it can be done easily. Here are some frequently asked questions about fixing a leaking toilet cistern:
- Q: How do I know if my toilet cistern is leaking?
- A: If you hear water running in your toilet after it has been flushed, it’s possible that the cistern is leaking. You can also check for any visible signs of leaks on the outside of the cistern or on the floor around the toilet.
- Q: Can I use any sealant to seal my cistern?
- A: No, it’s recommended to use a silicone sealant specifically designed for toilets. Regular sealants may not hold up against the pressure and moisture of a toilet cistern.
- Q: Can I fix a leaking toilet cistern without professional help?
- A: Yes, with the right tools and instructions, fixing a leaking toilet cistern can be done easily without professional help.
- Q: How often should I check my toilet cistern for leaks?
- A: It’s a good idea to check your toilet cistern for leaks at least once a year, or if you notice any signs of leaks such as water running after a flush.
- Q: What are some common causes of toilet cistern leaks?
- A: Some common causes include worn out washers, nuts, and bolts, a faulty flush valve, or a crack in the cistern itself.
By following the step-by-step instructions and tips provided in this guide, you can fix a leaking toilet cistern and prevent future leaks. If you have any other questions or concerns, don’t hesitate to seek professional advice.