Diagnosing Toilet Noises
- A Hissing Noise. A hissing noise is a sign of a faulty fill valve/ballcock. ...
- Ghost Flushing. Ghost flushing has nothing to do with ghosts but everything to do with a leaking or running toilet. ...
- Vibrating Toilet Noise. If when flushing your toilet you hear a loud vibrating noise, it points to a faulty toilet shut off valve.
- Toilet Making a Gurgling Noise. ...
Why is my toilet making a moaning sound?
Toilet Is Making Noise After Flushing
- Moaning. One of the most common noises heard from the toilet is a moaning, almost like the toilet is gasping for air.
- Gurgling. Although a slight gurgling sound is normal during and shortly after flushing the toilet, a constant gurgling after flushing usually indicates a blocked vent.
- Whistling. ...
- Trickling. ...
How to stop a toilet from hissing?
How the toilet works
- Flush valve - opens up the pipe that allows water and waste to be expelled from the commode.
- Fill valve - allows fresh water into the tank. The fill valve has a float attached to it. ...
- Flapper - is connected at the bottom of the flush valve. When the flush valve is closed, the flapper closes the draining hole to stop water from flowing out. ...
How to fix a toilet making a foghorn sound?
Things You Will Need
- Screwdriver
- Fill valve washer
- Adjustable pliers
- New fill valve
What causes a toilet to make the whoosh sound?
What Does it Mean When Your Toilet Sounds Like it Randomly Flushes?
- Phantom Flushing Noise. When your toilet sounds like it randomly flushes, even though nobody is near the toilet, it is referred to as phantom flushing.
- Phantom Flushing Wastes Water. ...
- Detecting the Source. ...
- Fixing the Problem. ...
How do I get my toilet to stop hissing?
0:531:483. How To Fix Your Hissing Toilet - YouTubeYouTubeStart of suggested clipEnd of suggested clipRemove any visible debris. And sediment from the film Bob either with your finger a pin or byMoreRemove any visible debris. And sediment from the film Bob either with your finger a pin or by turning the water on slowly to flush the sediment.
Is a hissing toilet an emergency?
A hissing toilet is an indication of a leak but isn't an emergency. However, you or a plumber should address this issue as soon as you can get to it.
Why does my toilet sound like its hissing?
A: The hissing noise is most likely a defective refill valve. There are two valves inside the tank on the back of the toilet bowl. One is the flapper valve, located at the bottom of the tank, which allows water to enter the bowl.
Is a hissing toilet leaking?
A hissing toilet is not at all uncommon and is usually an indication that water is leaking from the tank into the toilet bowl. In many cases, the hissing noise is related to an issue with the parts inside the toilet tank, known as the flush valve assembly.
Is it normal for your toilet to make noise?
Toilets make a lot of noise when they flush, but they should be quiet the rest of the time. If your toilet makes noise when it's supposed to be quiet, this could be a sign of a leak or another plumbing problem.
How do you get air out of toilet pipes?
Start with the faucet that's closest to the shutoff valve and work your way to the farthest faucet. Open each hot and cold faucet about halfway to let the air run out. Remember to flush all the water out of the toilets, too.
Why does my toilet hiss?
If the old seal is damaged, it may have been blocking the valve and causing the toilet to hiss. You can order a new seal from the toilet manufacturer, but it’s easier just to take the old seal to your local home improvement center or plumbing supply store and find one that matches. When you get it home, put the new seal in the cap and reattach ...
What causes a toilet to vibrate?
This increases water pressure in the valve, which in turn forces the water out in a narrow stream, creating vibration and the pesky noise.
Why does my water tank make a hissing sound?
A hissing sound can mean that the refill valve is still letting a tiny bit of water into the tank because it hasn't shut off like it's designed to. The valve shuts off automatically based on the water level in the tank. A faulty valve or one not set properly will keep running.
Why does my toilet tank keep leaking water?
It's because water or air is moving through your water line into your toilet tank. Let's talk about water first, which is usually an easy fix once you find the problem. Toilets have what's called a refill valve. It controls how much water goes back into the tank after you flush.
How to tell if toilet tank is running?
When you hear the hissing sound, take the lid off your toilet tank. The first thing to check is to see if water is running down the overflow pipe. If it is, your refill valve is not shutting off when the tank is full. That means that water is constantly going down the refill tank and running up your water bill.
Why does my toilet make a hissing sound?
Toilet making a hissing sound. Noises in toilets are as a result of a faulty fill valve, flapper , flush valve, water supply line or shut off valve . A gurgling toilet noise however is a sign that your toilet drain/vent is clogged and therefore backing up in your toilet bowl.
Why does my water tank make a hissing noise?
A loose washer in the case of a ballcock or debris trapped inside the valve will restrict the flow of water to the tank resulting in a hissing/whistling sound due to the pressure of the water.
What happens if the toilet flapper is too tight?
If the toilet flapper is too tight, it will slightly unseat the toilet flapper from the flush valve. As a result water will escape to the toilet bowl and ultimately trigger a ghost flush.
Why does my toilet flush on its own?
When the flush valve is cracked or simply worn out, water will slowly start to leak from the tank to the bowl. As a result the toilet will constantly flush on its own as the fill valve compensates for the lost water. A faulty flush valve will need to be replaced.
What does ghost flushing mean?
Ghost flushing has nothing to do with ghosts but everything to do with a leaking or running toilet. When you have a slow running or leaking toilet, the water level in the toilet tank will gradually reduce until the critical point when the toilet float will trigger the fill valve to start filling the tank.
Why does my toilet keep running?
During flushing, it lifts off to allow water to move out of the tank and into the bowl. When the flapper is not sealing properly, you will have a constantly running toilet. This means that water is continually being lost from your toilet tank. The toilet tank is designed to always contain a certain amount of water.
Where is the shut off valve on a toilet?
The shut off valve will be located on the wall behind the toilet. Flush the toilet. Remove the toilet tank lid and place it away in a safe place. Your fill valve is the long toilet part on the left-hand side of your tank. On top of the fill valve, there is a cap.
Why does my toilet make a noise?
Toilet Keeps Making Noise: A noisy toilet can have several causes, but the most common culprits are: Leaking toilet valve. Malfunctioning fill valve. Calcium buildup inside the pipes. Checking the condition and position of the toilet valves should be your first step.
Why does my toilet flush on its own?
Have no fear! What is actually probably happening is that the water in your toilet tank is slowly seeping out, probably through a faulty flapper. Once the float gets below a certain level, the water switches on and voila, the toilet seems to magically flush on its own .
What happens when a toilet tank fills to its appropriate level?
You see, when the toilet tank fills to its appropriate level, the fill valve or toilet ballcock stops it from running. If the fill valve or toilet ballcock are not adjusted to the appropriate level, water then begins filling into the overflow valve.
What is wrong with my toilet?
From a simple running toilet (most often cured by a simple valve replacement) to a toilet overflow or more complex problems like water leaks, there are many things that can go wrong with your toilet. When the toilet keeps making noise is the first indication that something is wrong. If your toilet keeps making noise when it’s being flushed or ...
What is the phone number to call a plumber for a toilet?
If you need immediate help, please give us a call at 602-483-6868. From a simple running toilet (most often cured by a simple valve replacement) ...
Why does my toilet gurgle?
A gurgling toilet could be the result of a blocked sewer drain, blockage in a vent stack or a blockage in the toilet itself. If you find that your toilet is making a gurgling noise, ...
How long to wait to replace toilet flapper?
Wait for about 30 minutes and then look to see if any of the food coloring has traveled into the bowl. If so, you have caught your ghost, so to speak. Luckily, replacing the toilet flapper is another quick and easy job that you can tackle yourself or count on a plumber to complete for an incredibly reasonable price.
Why does my toilet gurgle?
Gurgling can be due to a blockage in the sewer drain, in a vent stack, or even in the actual toilet.
Can ghosts flush on their own?
This one tends to cause a few jumps. For whatever reason, right in the middle of the night, the ghost can seemingly flush on its own. The good news is that you don’t have a ghost problem and the actual explanation is a simple one.
Do you have to replace a toilet valve?
The good news is that there is a simple DIY fix to get rid of that hissing noise. Even further good news is that you do not have to replace the toilet. More often than not, it is as simple as cleaning and sealing the inlet valve.
Can you damage a toilet if you botch the fix?
The good news is that you can’t do any damage to the toilet if you botch the fix . The bad news is that breaking a replacement valve assembly means you have to replace it. Keep that in mind.

The Potential Problem Sites
Still Having Trouble with Hissing sounds?
- If the above methods do not work in your situation, then you will need to replace the entire inlet valve assembly. This process is the most complicated one so far, so there is no shame in calling a plumber. You can also choose to do the replacement yourself. This fix does not run the risk of damaging your toilet, but a mistake might break the new valve piece. Inlet valves usually run les…
Even Without Hissing, You Could Have Clogs
- Hissing is a sign of a calcium deposit creating clogs. However, if your toilet is prone to mineral problems, they are likely to manifest themselves well before the sound occurs. Before you hear the problem, you may notice: 1. Slow refilling of toilet bowl 2. Weak flushing strength 3. Unusually low water levels in toilet bowl
Summary
- The sound of a hissing toilet is annoying to everyone, and the cause of the problem is often quite elusive. The source of the issue usually boils down to one of the following situations: 1. Flapper 1.1. The flapper may be damaged or worn and in need of replacement. 2. Flapper chain 2.1. The chain may be situated at a length that is either too long or too short. 3. Float 3.1. The float could …