A leaking cistern can be an annoying and potentially costly problem. Not only does it waste water, but it can also lead to damage to your property and increase your water bills. Understanding why your cistern is leaking and how to repair common issues can save you both time and money.
Identifying the Problem
Before you can fix a leaking cistern, you need to identify the source of the leak. There are several common reasons why a cistern might leak:
- Faulty Flush Valve: The flush valve is responsible for releasing water from the cistern into the toilet bowl when you flush. If the flush valve is damaged or worn out, water can leak continuously into the toilet bowl, causing the cistern to refill more frequently than it should.
- Worn-out Flapper Valve: The flapper valve is located at the bottom of the cistern and seals the opening that allows water to flow into the toilet bowl. If the flapper valve is worn out or damaged, it may not create a proper seal, causing water to leak into the bowl.
- Cracked Cistern: Over time, cisterns can develop cracks due to age or damage. These cracks can allow water to escape, leading to leaks.
- Loose Bolts or Connections: The bolts and connections that hold the cistern to the toilet bowl can become loose over time, causing leaks to occur.
Repairing Common Issues
Once you’ve identified the source of the leak, you can take steps to repair it. Here’s how to fix some common cistern leaks:
- Replace the Flush Valve: Turn off the water supply to the cistern and flush the toilet to drain the water. Remove the old flush valve and replace it with a new one according to the manufacturer’s instructions.
- Replace the Flapper Valve: Drain the cistern and remove the old flapper valve. Install a new flapper valve, making sure it creates a tight seal when closed.
- Patch Cracks: If your cistern has developed cracks, you can patch them using waterproof epoxy or silicone sealant. Make sure to clean and dry the area thoroughly before applying the patch.
- Tighten Bolts and Connections: Inspect the bolts and connections that hold the cistern to the toilet bowl and tighten any that are loose. Be careful not to overtighten, as this can cause damage.
Preventing Future Leaks
Once you’ve repaired your leaking cistern, there are steps you can take to prevent future leaks:
- Regular Maintenance: Inspect your cistern and toilet regularly for signs of wear or damage. Replace any worn-out parts promptly to prevent leaks from occurring.
- Avoid Using Harsh Chemicals: Harsh chemicals can damage the seals and components of your cistern, leading to leaks. Use gentle cleaning products and avoid flushing anything other than toilet paper down the toilet.
- Check Water Pressure: High water pressure can put stress on your plumbing fixtures, leading to leaks. Install a pressure regulator if necessary to reduce water pressure to a safe level.
- Professional Inspection: If you’re not sure how to repair a leaking cistern or if the leak persists after attempting repairs, it’s best to call a professional plumber. They can identify the cause of the leak and recommend the best course of action to fix it.
By understanding why your cistern is leaking and taking steps to repair and prevent future leaks, you can save water, money, and avoid potential damage to your property. Regular maintenance and prompt repairs are key to keeping your plumbing in good working order.
