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Step-by-Step Instructions for Fixing a Running Toilet

Step-by-Step Instructions for Fixing a Running Toilet

Step-by-Step Instructions for Fixing a Running Toilet

As homeowners, we often face minor household issues that can be easily fixed if we possess basic knowledge about them. Repairing a running toilet can be a challenging task for many. However, with some clear guidelines and necessary tools, you can address this problem on your own. Using these instructions, provided by 1800 Plumber of CT, you can successfully fix a running toilet in your home.

Assess the Problem

Firstly, identifying the cause of the issue is of paramount importance. Here are the steps to follow:

- Take off the lid of your toilet tank.
- Check whether the flap, ball float, and overflow tube are functioning correctly.
- If the water level is too high (overflows into the tube), or the flap does not close properly, it could be the reason for your running toilet.

Correcting the Water Level

If the water level appears high, follow these steps to fix this:

- Locate the water level adjustment clip on the fill valve. 
- Move the float down to reduce the water level.
- Test your adjustment. Flush the toilet and observe whether the issue is fixed or not.

Modifying the Flapper

The flapper is a significant component and any dysfunction here can result in a running toilet. Here’s how to adjust it:

- Turn off the water supply valve at the base of your toilet. 
- Unclip the flapper from its hinges.
- Check the flapper for any signs of wear or damage.
- If the flapper is damaged, replace it with a new one that matches the model of your toilet.
- Turn the water back on and check if the problem persists.

Inspecting the Fill Valve

The other potential troublemaker could be the fill valve. Here’s how to fix this:

- Turn off the water again.
- Gently remove the fill valve by unscrewing it.
- Inspect it for any signs of wear or damage.
- If required, replace the valve with a similar model.

Inspecting the Overflow Tube

If the problem still lingers, your overflow tube may be to blame. Here’s how to adjust it:

- Cut the overflow tube so that it is 1 inch below the critical level mark of the fill valve.
- Modify the fill valve so that the water stops filling once it reaches just beneath the cut of the overflow tube.

Seek Professional Help

If your understanding of these steps isn’t sufficient, or you have followed these steps but couldn’t rectify the issue, then seeking professional help from a trusted company like 1800 Plumber of CT is a wise decision. They not only have vast experience in fixing running toilets but also specialize in Emergency Electrical Services, Air Conditioning Services, AC Repair, AC Installation, AC Maintenance, Mini-Split Systems, HVAC Services, Heating Services, Heating Installation, Heating Repair, Ventilation Services, Sewer Line Repair, Sewage & Drain Cleaning, and Gas Line Repair. Their expert service can bring an end to the situation and provide a more permanent resolution to the trouble.


Fixing a running toilet can be daunting at first, but knowing the exact procedure to address the issue can help you tackle it proficiently. However, if after trying these steps you are still facing the issue, getting assistance from professionals like the experts at 1800 Plumber of CT is highly recommended. Not only will they correct the issue, but they may potentially find anything else that needs to be rectified, saving you both money and stress in the long run.

Read reviews and more at 1800 Plumber of CT’s Google Business Profile. Then, contact us today and get your plumbing back in top shape!

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