If your toilet is making a foghorn noise, it could be because of a loose washer inside the “float”—a black, ballock-style valve that is common on older units. Lift the tank lid and flush your toilet while holding up the float, and if the foghorn noise goes away, you've located the problem.
2) Foghorn
A foghorn sound in your plumbing could be a number of things. It may be a faulty ballcock in the toilet, a loose faucet washer, or a valve in the washing machine. It may also be permeating your entire house, in which case it could be from loose or old pipes or a malfunctioning regulator.
Ignoring the loud noise may lead to burst pipes- you will need to install a water hammer arrestor on the water line to stop your toilet from making a noise like that. You can also reduce the flow by adjusting the shut off valve, so the water pressure is lower and less likely to cause strange noises.
If you hear a foghorn sound, you probably have an older toilet with a metal ballcock-style fill valve, and the sound is coming from a loose washer in the ballcock assembly.
If your toilet is making a high pitched sound, a whistling sound, a hissing sound, or is making the wall around it vibrate every few minutes, it could be an issue with your toilet valve leaking. It could also mean your fill valve is not functioning properly as well.
Foghorn sound:
If your toilet making foghorn noise after flushing, it's likely because it has a metal ballcock (don't laugh) fill valve. The washer inside the assembly may be loose or worn.
To prevent this in your home, you can install a hammer arrestor where the shut-off valves are located in your system. This way, when the water turns off, the arrestor will compress and absorb the rush of water to quiet your pipes.
In most cases, the cause of toilet whistling can be a metal ballcock valve. These ballcock valves come with an armature and ball that begin to vibrate when the toilet tank refills after flushing. This vibration of valves causes the whistling sound that you hear.
Will an airlock clear itself. Even if you run out of water, air should automatically clear in a well-constructed low-pressure water pipe system. The air should naturally climb to the top and discharge as the pipe system fills up.
If the pressure level is higher than 60, you have found the root cause of the noise from pipes when a toilet is flushed. The solution is to install a pressure regulator at the point where the water comes into your home. This will adjust the high level of water pressure and keep it at a steady threshold.
Air usually gets trapped at high points in your water supply system, and to force this out, you have to temporarily increase the velocity of the water flowing through the pipes.
Let the cold tap run for 2 minutes, turn off both taps and remove the hose. Then let the hot tap run for 2 minutes to confirm that the air lock is cleared. If the air lock is not cleared, repeat the procedure one or two times more.
Tapping or banging sounds from your heating system (trapped air in the system) Lower than normal boiler pressure (may occur after bleeding radiators) No hot water from taps (air lock in the hot water supply pipe work) Sputtering or inconsistent flow of water from taps (trapped air in the hot water supply pipe work)
A clog is creating negative air pressure, Instead of air flowing through the lines,the air pushes back and causes the gurgling sound.
This sound can happen intermittently and occur every few minutes or every few hours. Such a refill sound is usually alerting you that your toilet is losing water, either internally (if there's no water on the floor or exterior of toilet) or externally leaking if you see water outside the toilet.
A foghorn sound coming from the toilet usually stems from problems with the ballcock valve, also known as the flapper or toilet fill valve. Some toilets have metal ballcock valves that contain washers inside. If that washer gets loose or worn, it can cause this sound.
The flange may have broken as a result of the toilet wobbling or creaking when you sit on it, or it may be the cause. If the existing flange contains cracks or has pieces broken from it, it'll need to be replaced.
A defective refill valve or ballcock in a toilet can cause the noise. Suspect this if the groaning occurs after a toilet is flushed. The noise occurs as the toilet tank is being refilled. The remedy is to replace the valve, which is located at the left inside the toilet tank.
Are the pipes humming when you flush the toilet? This may mean that you have an issue with one of your valves. While the humming sound is present, shut off each valve. If the humming sounds stops, then the valve is the source of the issue, and you may need to replace the valve for the fill tank.
It's usually the result of an increase in pressure in the water line. That may be at night, if you're on a municipal water system, or any time the pump cycles on, if you get your water from a well. If the fill valve in your toilet is old and made of metal, the pressure can make it vibrate with an audible humming sound.
A clog is creating negative air pressure, Instead of air flowing through the lines,the air pushes back and causes the gurgling sound.
The longer you leave a clog, the more opportunities there are for the clog to get worse. The most water-soluble parts of the clog will dissolve, and the rest will fill in the gaps, making the clog worse. There is also the possibility that human error could come into play.
When a toilet has a clog made of water-soluble materials, it has a chance of slowly dissolving in the water and freeing up the toilet to work properly again. So, clogs that are primarily made of toilet paper can clear themselves.
Hot Water and Dish Soap
When the water is extremely hot, but not boiling, pour into the toilet carefully. Wait for 10-15 minutes while the dish soap and hot water soften the clog. Once you do so, the toilet will unclog and flush freely.