A running toilet might seem like a minor inconvenience, but over time, it can waste hundreds of litres of water a day, increasing both your water bill and environmental impact. Fortunately, fixing a running toilet is often a straightforward task. In this guide, we’ll explain the most effective ways to fix a running toilet, when to consider calling a local plumber, and how London plumbers can help homeowners and landlords maintain plumbing efficiency.
Why Is My Toilet Constantly Running?
The first step in fixing a running toilet is identifying the cause. There are several reasons why your toilet is constantly running, including:
- A worn or misaligned flapper valve
- A faulty float mechanism
- A leaking fill valve
- Chain issues between the handle and the flapper
- Incorrect water level setting
These parts work together to manage the tank’s water supply. If any component is broken or out of sync, water may continuously flow into the bowl.
1. Inspect and Replace the Flapper Valve
The most common cause of a running toilet is a faulty flapper valve. This rubber piece at the bottom of the tank lifts when you flush and reseals the tank once it’s emptied. Over time, it can wear out or become misaligned.
How to fix it:
Turn off the water supply, flush the toilet to drain the tank, and inspect the flapper. If it looks cracked or feels stiff, it should be replaced. Flappers are inexpensive and easy to install without professional help.
2. Adjust the Float to Control the Water Level
If the water level in your tank is too high, it will constantly flow into the overflow tube, creating a cycle where the toilet constantly runs.
Fix:
Lift the lid of the toilet cistern and locate the float. For older ball floats, gently bend the arm downward. For modern float-cup styles, turn the adjustment screw to lower the water level to about an inch below the overflow tube.
3. Check the Flush Handle and Chain
Sometimes the issue lies in the flush handle or the chain that lifts the flapper. If the chain is too tight or tangled, it may prevent the flapper from sealing properly.
Fix:
Ensure the chain has just enough slack, not too tight or too loose. Reattach or adjust the chain as necessary so the flapper closes completely after each flush.
4. Replace the Fill Valve if Necessary
The fill valve controls the flow of water into the tank after flushing. If it’s not shutting off properly, it could cause the tank to refill constantly.
Fix:
If adjusting the float doesn’t stop the issue, the fill valve may need replacing. This job involves shutting off the water supply, draining the tank, and removing the faulty valve. New valves come with detailed instructions, or you can call a plumber in London UK, to handle it for you.
5. Call a Local Plumber for Stubborn Issues
While many of these problems are easy to fix, persistent issues should be addressed by a professional. An experienced local plumber can quickly diagnose the root of the problem and make lasting repairs. If you’re located in the capital, London plumbers are familiar with both modern systems and older plumbing typical of historic buildings.
Using professional help also ensures no water damage or leaks go unnoticed, which can save you from future costly repairs.
Final Thoughts
Fixing a running toilet is often a manageable DIY job if you understand how the components work. Simple fixes like replacing a flapper or adjusting the float can resolve most issues. However, when in doubt, a plumber in London UK is only a call away. Not only can they fix the problem properly, but they’ll also check for any underlying issues.
Maintaining a well-functioning toilet is crucial for saving water, avoiding damage, and keeping your household running smoothly. Don’t ignore a running toilet—get it sorted before it leads to bigger problems.