Besides being alarming water hammer can potentially damage joints and connections in the water pipe itself.
Moaning noise in attic.
Check your air chamber.
There are a few possible sources for this sound but none of them ghostly or even worrying enough to call.
Grinding noises are likely to be made by some type of rodent.
If you see them the valve isn t sealed and you can disassemble.
One problem that could be causing a popping sound in your walls or in the attic is pests.
A loose shutter on an attic window or loosened attic vents can cause a banging sound if it s windy as can branches hitting the roof.
Grinding noises are made as rodents chew woodwork.
If the noise stops there s a loose or worn washer in the ballcock mechanism.
They may be chewing to improve passageways or just for fun.
Look for three screws in the top of the fill valve.
Likely culprits are rats mice grey squirrels and flying squirrels.
Clicking knocking and clanking no that s not the sound of chains rattling in the attic.
An air chamber is a vertical pipe located in the wall cavity at the point near a faucet or valve where the water supply pipe exits the wall.
There are two primary methods of addressing this issue.
Grinding noise in the attic.
If there are vocal noises in the attic then raccoons are going to be the most likely culprits since they are one of the few that actually talk.
When you hear a banging coming from the attic and are trying to determine the cause you are most likely dealing with one of these four animals.
The hammering action that creates the horrible racket is actually capable of damaging joints and connections in the pipe.
If you hear thumping in your attic at night it s most likely a larger animal such as a raccoon or opossum engaged in jumping from one area of the attic to another actively shoving or destroying something or dragging something heavy.
Mice rats birds or other animals may have entered the home and are chewing digging and pecking on the interior of your home from the attic or inside the walls.
A loose attic vent or shutter on a window can make a banging noise in the wind.
An air chamber is essentially a vertical pipe located near your faucet often in the wall.
This deafening sound is known as a water hammer.
Heating ducts as they cool also make banging noises as do.
Snarling noise in the attic.
Air passing through ducts and radiators can sometimes create a loud noise as can water passing through pipes.
