Toilet won’t flush water rises | Cause & 4 solutions

Has this happened to you before? You use the toilet, and it won’t flush – instead, water starts slowly rising until it’s spilling over the edge of the bowl. Don’t worry; you’re not alone. 

Toilet won’t flush water rises is a very common problem that plumbers get called out to solve all the time. In this blog post, I’ll tell you what might be causing your toilet to act up and how to fix it. 

I’ll also provide information on what to do if your toilet continues to have problems flushing. Hopefully, this will help you get your bathroom back up and running in no time! So, keep reading for more tips!

Know First…

Why Toilet won’t flush Water Rises same time?

Sometimes the toilet won’t flush for many reasons, you know from here, but if the water rises at the same time, this may indicate different causes.

Cause1. Toilet won’t flush, but water rises not clogged Due to BLOCKED VENT PIPE. 

If your toilet bowl water rises when you flush, but the toilet itself will not flush, then you likely have a blocked vent pipe. This is a common problem in older homes, as the vent piping can become blocked with dirt and debris over time. 

The blockage will prevent the toilet from flushing properly and cause the bowl water to rise due to the lack of airflow.

How to fix a Blockage vent pipe that is not flushing a toilet properly.

You can do to try a few things to unblock the vent pipe yourself. 

First, try using a plunger to clear the blockage. If that does not function, you can try using a plumbing snake to clear the pipe. 

If neither of those methods works, you will likely need to call a plumber to clear the blockage.

Cause2. The toilet won’t flush water just rises due to CLOGGED IN S-TRAP. 

The toilet won’t flush – the water just rises due to a clogged S-trap.

A toilet with an S-trap has a hidden trap underneath the bowl that connects to the main drainage system. This type of trap is less common today, but they are still found in some homes. 

S-trap plays a critical role in safe and effective plumbing system operation. It can also be more prone to blockages.

The S-trap’s primary purpose is to prevent sewer gases from entering the home by creating a seal between the drain and the trap, also preventing odors from emanating from the drain.

Although, The S-trap can be more difficult to clean than other types of traps and due to its carving path, tissue, wipes, and other items are present there.

How to unblock S-trap 

In this case, you must clear the clog before the toilet flushes properly again. 

You can use a plunger or a plumber’s snake to do this. After this, use baking soda or Epsom salt.

Cause3. The toilet won’t flush water level rises because SEPTIC TANK IS FULL.

Another main reason for rising water in the toilet and not flushing is because of septic tank is full.

If your toilet bowl water rises when you flush, and you have determined that the problem is not a clogged S-trap or vent pipe, then it is likely that your septic tank is full.

A full septic tank will prevent the toilet from flushing properly and cause the bowl water to rise.

If you think your septic tank is full, you will likely need to call a plumber to clear the blockage.

It is important to remember that a full septic tank can cause problems with your toilet and lead to back-ups and sewage spills and overflows. Therefore, it is important to address the problem as soon as possible.

Cause4. Toilet Won’t flush properly, but water rising due to CLOGGED DRAIN PIPE.

A toilet that will not flush properly may signify a clogged pipe. If the water rises in the bowl, the clog is likely in the main drain pipe. 

This can be a difficult problem to fix on your own and may require the services of a professional.

If you feel the clog is in the drainpipe, you can use a plunger to clear it.

Be sure to cover the overflow hole in the bowl with a cloth so that the plunger can create a good seal. Try to create suction by pushing and pulling the plunger up and down. If the clog is cleared, the water will drain from the bowl.

clogged drain pipe can cause toilet not to flush

If the plunger does not work, you may need to use a coat hanger or other metal wire to try to clear the clog. Be very careful when doing this, as you do not want to damage the pipe. If you cannot remove the clog, you will need to call a professional.

A clogged drain pipe can be a difficult problem to fix on your own. If you cannot clear the clog, you will need to call a professional. 

A plumber can use various methods to clear the clog and help you prevent future clogs from occurring. Prevention is key for clogged pipes, so be sure to take measures to keep them clear.

Read More- toilet flushes, but poop comes back.

What do you do when you flush the toilet and the water rises?

There are several things you can attempt to resolve the problem.

Tips1. One possible solution is to pour a bucket of hot water into the toilet to help push the waste down. This will assist lower the possibility of the water rising and overflowing the toilet.

Tips2. Try to unclog the toilet as much as you can. You can use Drano Max Build-up Cleaner or Normal house hack dish washes liquid with hot water.

When the water rises in a bowl, it is because there is high pressure from different areas of the house moving towards that one toilet. 

· This will not “flood” your toilet unless the overflow hole catches this extra water too, which can happen if your seal under the toilet is no longer working properly. 

You should check for evidence of leaks and make any necessary changes to ensure nothing is stopping water from exiting through its original intended exit point. 

Read More- Will a toilet eventually unclog itself?

How to fix a toilet that won’t flush water rises?

If your toilet is continuously overflowing, the problem is likely that the water is not being drained properly. 

1. Try to unclog the drain

2. Try to unblock the plumbing vent pipe

3. Use dishwasher liquid and water water

4. Plunger three times

If the water continues to rise even after you have corrected these issues, it’s time to call a plumber.

What if toilet water rises and then slowly drains?

If the water level in your toilet is rising and slowly draining, there is likely a clog in the drain line. 

The drain line is the pipeline that transports waste from the toilet.

If it is clogged, the water will not be able to drain, and the toilet will fill up. Use plunger or snake. Or put Drano Build-up cleaner, very effective.

Wrap Up on Toilet won’t flush But Water Rises.

If It’s unclear what is causing the water to rise in your toilets, one thing is for sure that something is wrong with the toilet, but what? 

I suggest all major causes and how to figure out the root of the problem. In the meantime, it might be a good idea to avoid using the toilet until you can get it fixed.


Q1. Why does my toilet fill up but not flush?

There are several possible causes for your toilet to fill but not flush. One possibility is that something is blocking the pipe leading from the toilet to the sewer system. If this is the case, you might be able to clear the blockage using a plunger.

Another possibility is that the flapper valve in your toilet is not closing properly. This can happen if the valve is old or worn out. If this is the problem, you can usually fix it by replacing the flapper valve.

Finally, there is a possibility that your toilet’s plumbing system is not correctly vented. If this is the situation, you should have a professional evaluate your plumbing system to find the source of the problem.

If you’re not confident about what is causing your toilet to fill up but not flush, it’s best to consult a skilled to resolve the cause and fix the problem.

Q2. Why does my toilet bowl keep filling up with water?

If your toilet bowl keeps filling up with water, it may be due to a clog in the drainage system. This can be caused by different things, such as tampons, toilet paper, or other objects that may have been accidentally flushed down the toilet. 

Another possible reason bowl keeps filling with water is either the sewer line clog or your septic tank is full. If a septic tank is caused, the water is most likely black with a bad odor.

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