02.04.2025

Toilet water constantly running? An old-fashioned method solves the problem.

By Lesia

It sounds like you’re dealing with a common and annoying problem! A constantly running toilet often involves a simple fix. Here’s an old-fashioned method, along with some modern tips, to get it working again:

Understanding the Problem

A running toilet usually means that water is leaking from the tank into the bowl. This often involves these parts:

  • Flapper: The rubber valve at the bottom of the tank that lifts to flush.
  • Fill Valve (Ballcock): The mechanism that refills the tank after a flush.  
  • Chain: Connects the flush handle to the flapper.  
  • Float: A ball or cylinder connected to the fill valve that senses the water level.  

Old-Fashioned (and Still Effective) Methods

These methods involve a bit of trial-and-error:

  1. Check the Flapper:
    • The Old-Fashioned Way: Reach into the tank (clean gloves are a good idea!) and feel the flapper. Is it:
      • Worn or Cracked? If so, it’s not sealing properly.
      • Misaligned? It needs to sit squarely over the drain opening.
      • Obstructed? Something might be caught under it (sediment, debris).
    • The Fix:
      • Replace the flapper. They’re inexpensive and easy to replace.
      • Adjust the flapper chain to ensure it lifts the flapper enough to flush but doesn’t hold it open.  
      • Clean the area around the flapper seat (the drain opening) to remove any debris.  
  2. Check the Chain:
    • The Old-Fashioned Way: Observe the chain. Is it:
      • Too Long? It might be getting caught under the flapper.
      • Too Short? It might not be lifting the flapper enough.
      • Disconnected? It needs to be properly attached to both the flush handle and the flapper.  
    • The Fix:
      • Adjust the chain length. There are usually links you can move it to.
      • Reattach the chain if it’s disconnected.
  3. Check the Float:
    • The Old-Fashioned Way: Watch the water level in the tank. Does it:
      • Get Too High? The fill valve might not be shutting off.
      • Touch the Overflow Tube? (The vertical tube in the center of the tank). This means the tank is overfilling, and water is going down the tube.
    • The Fix:
      • Adjust the float. There’s usually a screw or clip you can adjust to change the water level.  
      • If the float is damaged (full of water), replace it.

Modern Tips

  • Use Food Coloring: Put a few drops of food coloring in the tank water. If colored water appears in the bowl, the flapper is leaking.  
  • Listen Carefully: Sometimes, you can hear a faint hissing sound if the fill valve is leaking.

Important Notes

  • Turn off the water supply to the toilet before doing any repairs. There’s usually a valve behind the toilet.  
  • Take pictures of how things are connected before you start taking them apart. This will help you put everything back together correctly.
  • If you’re not comfortable doing these repairs yourself, call a plumber.

I hope this helps you solve your running toilet problem!