If you’re asking yourself, “why is my toilet running?”, you’re not alone. In many cases, this problem can be easily fixed, but it’s important to understand what’s causing it first. In this article, we will explore 12 common reasons why your toilet might be running non-stop and provide solutions for each.
Stuck Or Damaged Toilet Handle
One of the simplest reasons your toilet may be running is a stuck or damaged toilet handle. When the handle doesn’t return to its proper position after flushing, it can cause the toilet to continue running. The handle is attached to a lever inside the tank, which pulls the chain and lifts the flapper valve. If the handle is stuck, this entire mechanism won’t reset properly. To fix this, try jiggling the handle. If that doesn’t work, the handle might need replacing, which is a straightforward task that can be completed with basic tools.
High Water Pressure in Your Home
High water pressure is another common reason why toilets run. If the water pressure in your home is too high, the toilet tank can overfill quickly, causing water to leak into the overflow tube. This can cause the toilet to run continuously. To fix this, you may need to adjust the water pressure at your main water supply valve or install a pressure-reducing valve in your home’s plumbing system. Proper water pressure not only helps your toilet function properly but also prevents wear and tear on your plumbing fixtures.
Float Positioned Too High
The float inside the toilet tank is designed to control the water level. If the float is set too high, the water level in the tank will rise above the overflow tube, causing a continuous flow of water into the toilet bowl. To resolve this, check the float’s position. You can adjust the float by either bending the arm connected to it or turning a screw that adjusts its height. Lowering the float will prevent the water from spilling into the overflow tube and stop your toilet from running.
Worn-Out Flapper Valve
A worn-out flapper valve is one of the most common culprits of a running toilet. The flapper is the rubber or plastic valve that lifts when you flush and seals the opening to the flush valve. Over time, flappers can degrade, become cracked, or lose their flexibility, preventing them from creating a proper seal. When this happens, water leaks from the tank into the bowl, causing the toilet to run. Replacing the flapper valve is a quick and inexpensive fix. Simply remove the old flapper, take it to a hardware store to find a matching replacement, and install the new one.
Leaky Refill Tube
The refill tube is a small, flexible tube that refills the toilet bowl after each flush. If this tube is too long or damaged, it may cause the water to flow continuously. To fix this, check the length of the refill tube. It should be short enough to sit just above the overflow tube, not inside it. If the refill tube is positioned incorrectly or damaged, you may need to trim it or replace it entirely to ensure proper water flow.
Blocked Toilet Overflow Tube
The overflow tube in your toilet tank prevents water from spilling over the tank’s edge. If this tube becomes blocked, it can cause the tank to overfill and the toilet to run. Over time, sediment, debris, or even small items like toilet paper can clog the overflow tube, causing issues. To resolve this, clean the tube using a small brush or a pipe cleaner to ensure water can flow freely.
Broken Fill Valve
A broken or malfunctioning fill valve can cause water to continuously flow into the toilet tank without stopping. The fill valve controls the amount of water that enters the tank after a flush. If it is damaged or misaligned, it won’t shut off properly, and your toilet will keep running. In this case, the best solution is to replace the fill valve. You can purchase a replacement valve at most hardware stores and follow the instructions for installation, or you can call a plumber for assistance if you’re unsure.
Cracked Toilet Tank
In rare cases, a crack in your toilet tank could cause the toilet to run continuously. If the tank has a crack near the waterline, water can slowly seep out, causing the fill valve to keep running. Inspect your tank for visible cracks, especially around the waterline. If you find one, it’s time to replace the toilet tank, as patching the crack is often a temporary solution and can lead to more significant issues down the road.
Misaligned Flush Valve
The flush valve is the part of your toilet that releases water into the bowl when you flush. If the flush valve is misaligned or damaged, it can cause water to leak into the bowl, making the toilet run constantly. To fix this, inspect the flush valve for any misalignment or visible wear. In some cases, simply realigning the valve will resolve the problem. If the valve is cracked or damaged, replacing it is the best solution.
Sediment Buildup in The Tank
Over time, sediment from hard water can accumulate in your toilet tank, particularly around the fill valve and other components. This sediment buildup can prevent the toilet from functioning properly, leading to continuous running. To address this, clean your toilet tank regularly. You can use a gentle cleaning solution and a brush to remove sediment from the tank’s components. Regular cleaning will help prevent sediment from causing issues with your toilet’s operation.
Corroded Flush Lever Components
Another possible reason your toilet might be running constantly is due to corroded flush lever components. Over time, the metal parts inside the toilet tank, particularly those connected to the flush lever, can rust or corrode. When this happens, the flush lever may not function properly, causing the flapper to stay open longer than it should. If you notice any rust or corrosion on these components, it’s best to replace them. A flush lever assembly is easy to replace and can be found at most hardware stores. Keeping these parts in good condition ensures the smooth operation of your toilet and prevents unnecessary running.
Issues With the Flush Handle Chain
The chain that connects the flush handle to the flapper can also cause the toilet to run constantly if it’s too long or tangled. When the chain is too long, it might get caught under the flapper or not lift it high enough, preventing a full seal. On the other hand, if the chain is too short, it can keep the flapper open even when the flush handle has been released. To fix this, check the chain’s length and adjust it so it allows the flapper to fully open and close. Proper adjustment of the chain can stop your toilet from running.
When To Call a Professional
If you’ve tried these solutions and your toilet is still running, it might be time to call a professional plumber. Do It Right Plumbing Sewer & Services provides reliable and efficient solutions for all types of plumbing problems, including running toilets. We are a fully licensed and bonded plumbing company, owned by an experienced Master Plumber. Our services are designed to meet the unique needs of our customers, ensuring their plumbing systems run smoothly and efficiently. With our expert help, you can avoid the frustration and water waste caused by a constantly running toilet.
Whether it’s a simple issue like a stuck handle or a more complex problem like a damaged fill valve, it’s essential to address the issue quickly. Not only will this prevent further damage to your plumbing system, but it will also save water and reduce your utility bills. If you’ve tried the solutions outlined here and your toilet is still running, don’t hesitate to contact a professional plumber for help. Proper maintenance and timely toilet repairs can help keep it running smoothly for years to come.