Toilet Keeps Running After Flush
Situation summary
After you flush, the toilet keeps running or refilling instead of stopping.
Immediate steps to limit damage
- If water is close to the top of the overflow tube or tank rim, shut off the toilet’s water supply valve
- If water is leaking onto the floor, wipe it up and keep the area dry
- If you are unsure where the supply valve is, locate it now in case the running becomes continuous
Can you try anything here?
Yes.
What you can try
- Remove the tank lid — this may show water continuously flowing into the overflow tube
- Gently lift the float — this may stop the fill valve if it is not shutting off
- Make sure the flush handle is not stuck down — this may prevent the flapper from staying open
- Shut off the toilet’s water supply valve — this stops continuous running while you decide what to do next
When professional help is needed
- Water continues flowing into the overflow tube after lifting the float
- The toilet keeps running after checking the handle is not stuck
- The tank water level rises close to the top of the overflow tube
- You hear running water for long periods after flushing
- Water leaks from the tank or supply connection
Background (optional)
A running toilet is often caused by a valve or seal inside the tank not closing as expected. The main risk is wasted water and, in some cases, overflow into the bowl.