Toilet Not Flushing? Here’s What To Do

When your toilet won’t flush, your home can be majorly inconvenienced. This common issue disrupts daily routines and can lead to more significant plumbing problems if not addressed promptly.
Understanding the potential causes of your toilet not flushing, and knowing which solutions to apply, is essential for maintaining a functional bathroom.
There are several reasons why a toilet might fail to flush, ranging from blockages and mechanical failures to low water levels. So let’s explore the most common causes of toilet flushing problems and provide a step-by-step guide on how to effectively troubleshoot and resolve these issues.
Common Causes of Toilet Flushing Problems
Having problems with the toilet? If you’re experiencing a slow flush or you’re finding that your toilet won’t flush at all, here are some of the most common causes:
- Blockage in the toilet trap or pipes – Items like excessive toilet paper, sanitary products, or small toys can obstruct the flow. You can often detect such blockages by observing how water drains from the bowl.
- Flushing mechanism is malfunctioning – Over time, wear and tear can lead to parts breaking or becoming misaligned. This can result in the toilet not flushing at all or only partially flushing.
- Low water levels in the tank – The water supply needs to be at a certain level to create enough pressure to flush effectively. Low water levels may be due to an issue with the fill valve assembly or an improperly adjusted float.
Addressing these issues can often get your slow-flushing toilet flushing properly once again.
Troubleshooting Steps
If you find your toilet won’t flush or is simply not flushing correctly, there are several simple approaches you can take to attempt to restore its functionality. For more advanced issues you will need a licensed plumber, but in the meantime, try these out:
#1 – Check for Blockages
The first step in troubleshooting a toilet that won’t flush is to check for blockages. Begin by inspecting the toilet bowl for any visible obstructions such as excessive toilet paper or foreign objects. If you can see the blockage, you might be able to remove it with a gloved hand or a toilet plunger.
If there’s no visible blockage in the bowl, the problem might lie deeper in the toilet trap or pipes. You can test for this by flushing the toilet and observing how the water drains. Slow draining or water rising to the rim indicates a blockage further down the line. In such cases, it’s advisable to seek professional toilet repairs to avoid damaging the plumbing system.
Using a plunger can sometimes get your toilet flushing properly. Make sure you use a toilet plunger, which has a flange that fits into the toilet drain. Place the plunger over the drain, push down gently to create a seal, then pump vigorously a few times. If the water starts to drain, you may have cleared the blockage.
#2 – Inspect the Flush Mechanism
If blockages are not the issue, the next step is to inspect the flush mechanism.
Start by removing the toilet tank lid and observing the components inside. Common flush mechanisms include push-buttons or lever-operated systems, both of which can experience wear and tear over time.
Check if the flush lever or button is properly connected to the lift chain or flush valve. If the flush mechanism appears intact but you still can’t make sure your toilet flushes properly, the problem could be with the flapper valve itself. The flapper should create a tight seal over the flush valve when the tank is full. If worn out or damaged, it might not lift completely or seal properly, resulting in weak or incomplete flushing. Replacing the toilet flapper can resolve this issue.
#3 – Assess the Water Level
Another critical aspect to check is the water level in the toilet tank. The water level should be just below the overflow tube, which ensures there’s enough water for a powerful flush. If the water level is too low, it can cause inadequate flushing.
Locate the fill valve to adjust the water level. This is usually positioned on the left side of the tank. Adjust the float attached to the fill valve to raise the water level. If you have an older toilet with a ball float, bend the arm slightly upward to increase the water level.
If adjusting the float doesn’t resolve the issue, the fill valve itself might be faulty. A malfunctioning fill valve can prevent the toilet tank from filling properly, leading to insufficient water for flushing. Replacing the fill valve can often fix this problem.
When to Call a Professional Plumber
There are certain situations where calling a professional plumber is the best course of action. If you’ve tried the basic troubleshooting steps and still can’t make your toilet flush properly, it’s time to seek expert help. Persistent issues may indicate a more complex problem within the plumbing system that requires specialised tools and expertise.
For blockages that aren’t resolved with a plunger or that recur frequently, a plumber can perform a thorough inspection and use advanced equipment like a plumbing snake or hydro-jet to clear the pipes. This ensures the blockage is completely removed and helps prevent a future clogged or broken toilet.
Additionally, if you notice signs of water leakage, such as water pooling around the toilet base, or a constantly running toilet, it’s crucial to contact a professional. Leaks can lead to significant water damage and higher utility bills. A licensed plumber can accurately diagnose and repair these issues, ensuring your toilet functions efficiently and safely.
Preventative Measures
To avoid future toilet flushing problems, regular maintenance is key.
Conduct periodic checks of the toilet and its components to ensure everything is functioning correctly. Inspect the flush mechanism, and the water level in the toilet cistern, and look out for any signs of wear and tear that might need addressing.
Proper use of the toilet is also essential. Avoid flushing items that can cause blockages, such as sanitary products, wet wipes, and excessive amounts of toilet paper. Educate household members about what can and cannot be flushed to minimise the risk of clogs.
Consider scheduling professional plumbing inspections annually. A plumber can identify potential issues early and perform necessary maintenance, ensuring your toilet remains in optimal condition. This proactive approach can save you time, money, and the inconvenience of dealing with unexpected toilet problems.
Keep Your Flushing Toilet in Perfect Working Order
Addressing toilet flushing problems promptly is essential to maintaining a functional bathroom.
By understanding common causes like blockages, issues with the flush mechanism, and low water levels, you can troubleshoot and resolve many problems on your own. However, knowing when to call a professional plumber ensures that more serious issues are handled correctly.
Regular maintenance and proper use of your toilet can prevent many common issues. By taking these preventative measures, you can avoid the inconvenience and potential damage caused by a malfunctioning toilet, ensuring a smooth and efficient plumbing system in your home.
Please note: Thank you for reading our blog “Toilet Not Flushing? Here’s What To Do”. This information is provided for advice purposes only. Regulations differ from state to state, so please consult your local authorities or an industry professional before proceeding with any work. See our Terms & Conditions here.