Soap Suds Coming Out Of Toilet: Reasons And How To Troubleshoot?

Our bathroom toilet may show various unusual behaviors while using it in our day-to-day life. One of the common problems many household owners often complain about is soap suds coming out of toilet. 

Though soap suds don’t appear like a headache, they can lead to serious problems if not handled promptly.

This issue mainly occurs when an unusual suction develops in the toilet line. However, it can happen for other reasons. 

Here we will share the probable causes of soap suds in a toilet and how to fix this strange thing quickly.

Why Foam Coming Out of Toilet?

Since soap bubbles may come out of the toilet for different reasons, you need to know the main culprit. Then fixing the problem will be easier. Here are most of them.

foam in toilet after flushing
  • A Blocked Toilet

Our bathroom toilet often gets blocked for various reasons. Many of us flush different unnecessary items that should not be flushed.

Items such as “Flushable” Wipes, toilet tissues, Paper towels, ladies’ cosmetics, cigarette ends, etc., are the main culprit for creating clogs inside a toilet.

  • Excess Air in the Water Tank

If there is excessive air inside your water tank, it can cause soap suds. But how can you determine too much air inside the water tank? 

Generally, you will notice a babbling sound when refilling the toilet tank.

  • A Defective Cistern

Each cistern features a flapper. Its main job is to flush the toilet and refill the toilet tank with fresh water. 

But if the flapper is defective or damaged, water will fail to drain appropriately. This creates an unhealthy flush system.

  • The Toilet Isn’t Level

Have you noticed whether your toilet base area is properly sitting level on the bathroom floor or not? Apart from soap bubbles, you may sometimes see moisture or water drops on the bathroom floor because of it.

  • A Clogged Vent Stack

Each household has a vent stack. It is one type of pipe connected to various lines of our home. 

Its main job is controlling the air pressure of the plumbing system and discharging the stack gas.

However, if it is blocked, closed, or sealed, it will fail to perform its job. This will result in opposite suction and end up soap suds.

Additionally, you can become sure about the blocked vent stack if a bad gassy smell comes into your residence. 

  • A Blocked Mainline 

All the wastes and water from a house moves through the mainline and go into the city connection.

If you notice clogging issues in several toilets at your home, then the primary culprit can be mainline.

Normally, when the mainline has this type of problem, you will notice soap suds in one while flushing another one. 

  • Clogged Or Faulty City Connection

If you don’t notice any of the above-listed problems, your city connection may have some issues. 

When your city connection is blocked or faulty, soap suds are likely to be seen in all toilets of your home. 

To become 100% sure about the problem, you can ask your neighbors whether they are also facing the same issue.

In this case, waiting is the only thing you can do. Make sure to contact the township or Water Company soonest to fix the problem. 

How To Get Rid Of Soap Bubbles In Toilet?

So, you have already learned the main causes that can lead to soap suds issues in your toilet. Now, let’s get into the solution part!

  • Fixing Your Blocked Toilet
get rid of soap bubbles in toilet

The best solution to fix a blocking toilet is plunging it. Before plunging the toilet, you must shut down all the fixtures connected to your bathroom sink. 

Use duct tape in all fixtures, including the shower, sink, and tub, to seal off them.

By shutting down all the fixtures, you ensure no air pressure release. Also, clearing the drain line will be easy-going.

Now, grab your plunger and pull and push it inside the toilet several times. If the blockage is not too far, you can remove it within 10-15 attempts. Do it firmly if necessary.

However, if the toilet is still in a clogged position, you can use a plumber’s auger or mechanized sewer snake, which is more effective in removing clogs. Normally, it can show reliable performance tough and too deep clogs.

  • Removing Excessive Air From The Water Tank

Removing unwanted air from your water tank is simple since you need to follow only a few steps. Here are they:

  • First, open the filler valve behind the toilet.
  • Keep it in that condition for 5-10 minutes so that all remaining water and air pressure get out.
  • Now, refill the water tank. This will remove the unwanted air that has been inside the tank for a long. 

However, if the excess air is still not fully removed, getting a professional plumbing service will be necessary. 

  • Fixing T Defective Cistern

At first, you have to figure out whether the flapper inside the cistern is damaged. If this is the case, you can just replace the small flapper. It should solve the problem.

However, if the whole cistern system has become defective, replacing the entire unit is necessary to make it functional and remove soap bubbles issues. 

  • Fixing The Clogged Vent Stack
foam coming out of toilet

Have you noticed any birds building nests on the roof of your house? Normally, a clogged vent stack may happen from birds’ nests. 

Alternatively, dry leaves or small animals may have entered inside the vent, preventing the venting from functioning properly.

Removing the birds’ nests, dry leaves, or tiny animals from the vent is supposed to solve the problem. 

Since vent pipes are installed on the roof, you must be cautious while clearing out debris from them. 

If the vent pipe is hard to reach or you fail to determine the clog’s real location, it is better to hire a plumber to handle the problem. 

  • Fixing The Blocked Mainline

Are you still noticing foam in the toilet after flushing? Don’t forget to check your mainline.

It is not easy to remove a clog from your mainline since several connections are there. Dealing with them is necessary. 

It is a good rule of thumb to get a professional plumbing service to get to job done quickly and easily.

Frequently Asked Questions (FAQs)

Is it bad if your toilet bubbles?

Since it is not normal, you should figure out the problem and implement a perfect solution based on it.

Why does one toilet bubble when I flush the toilet?

When the mainline of your toilet system is blocked, it can cause bubble issues while flushing the toilet.

How do I get rid of air bubbles in my toilet?

It depends on the problem your toilet or plumbing system is having. Implement a particular solution based on the root cause of the issue. 

Final Thought

Are you still concerned about soap suds coming out of toilet? We have already mentioned all the possible causes of this problem and how to fix it based on the primary reason. 

Ensure you know the main culprit and utilize a solution based on it. 

However, if you are unaware of the primary reason behind this problem, taking professional help is better to solve it quickly and prevent further damage. 

Clyde Mitchell

I run a hardware store nearby Court Anaheim, CA. Over the last 7 years, I have been blogging about home improvement and yes, I own ReliefInBath.com From me and this website, you can expect some useful tips on great ideas for a modern bathroom.

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