Troubleshooting 101: How to Fix a Running Toilet

1. Faulty Flapper:
   The flapper is a rubber seal at the bottom of the tank that controls water flow into the bowl. If worn out or misaligned, water can leak from the tank into the bowl, causing the toilet to run continuously.
2. Float Issues:
   The float is a device that regulates the water level in the tank. Water may spill into the overflow tube if set too high, causing the toilet to run. Alternatively, if the float is damaged or malfunctioning, it may not properly shut off the water supply.
3. Fill Valve Problems:
   The fill valve refills the tank after each flush. If it's defective or improperly adjusted, it can lead to constant running.

1. Shut off the Water:
   Locate the shut-off valve behind the toilet and turn it clockwise to stop water flow to the tank.
2. Inspect the Flapper:
   Lift the lid off the tank and inspect the flapper. If it's worn, dirty, or misaligned, it's likely the cause of the problem. Clean it or replace it if necessary.
3. Check the Float:
   Ensure that the float is not too high. If it is, adjust it according to the manufacturer's instructions. If the float is damaged, replace it with a new one.
4. Inspect the Fill Valve:
   Examine the fill valve for any signs of damage or malfunction. If it's defective, you must replace it with a new one.
5. Test for Leaks:
   Turn the water back on and let the tank fill. Observe the toilet to see if it continues to run. If it does, check for leaks around the flapper, float and fill the valve, and tighten any connections.
6. Fine-tune the Adjustments:
   Make any necessary adjustments to the flapper, float, or fill valve until the toilet stops running consistently.
7. Replace Parts if Necessary:
   If you've tried adjusting or cleaning the components and the toilet still runs, it may be time to replace the flapper, float, or fill valve.