01 of 05
Start by Removing the Tank Lid
Is your toilet running? This is a very common and annoying plumbing problem that can quickly cost you money. Luckily a running toilet is also easy to fix on your own.
Before you run to the hardware store to buy parts follow these steps to find the source of the problem.
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02 of 05
Step 1: Check the Overflow Valve
Check the overflow tube. If you can see water going into the overflow when the tank is full then, you know that the fill valve is not shutting off all the way and needs to be replaced.
- For step by step instructions look at Replacing A Toilet Fill Valve.
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03 of 05
Step 2: Check the Flapper Chain
If the overflow is not the problem, you’ll want to check the flapper chain next. If the flapper chain is too long or too short it could be the source of the problem. If the chain is too short, the flapper can’t go down completely to seal the opening of the tank. A chain that is too long could get caught under the flapper and hold it up, again preventing a good seal. A simple adjustment will fix the problem.
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04 of 05
Step 3: Check the Flapper Seal
The third possibility is the flapper itself. As the flapper gets old it could get hard or warped which could prevent a good seal. Even a slight imperfection could be causing the toilet to run. A few drops of food coloring can let you know if this is the problem.
Add the food coloring to the toilet tank and give it a few minutes.
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05 of 05
What's the Cause?Any coloring in the toilet bowl will let you know that the flapper is not sealing and needs to be replaced.