It can t be the building settling.
Vibrating inside bathroom wall.
It s the loudest through a wall that separates the master bath and the stairwell.
It would have collapsed by now if that was the cause.
The vibration comes when no water is being used and when the water is being used.
Phone company says the line wouldn t cause a vibration if it did the line would be smoking.
My home is a 2 story built in 1987.
We just had a new water heater installed about 10 months prior after our old one leaked and started to flood the garage.
Five years ago before that the kitchen pipe bursted and flooded the.
If i put my ear to the wall i can hear a clunk sound right before the humming like a loose pipe or slight water hammer i have tried to isolate the fixture that is causing the sound including toilets sinks bathtub etc however the sound remains when supply is cut to these fixtures.
But it sounds just like a large rat traipsing inside the wall.
Something in the air ducts or outlet vents for the fireplace bathroom vent etc is loose.
But for the long term health of your system such noises should be checked to find the root cause.
When the toilet in the detached garage man cave is flushed there is a terrible vibration rattle in the kitchen area behind a wall.
The discharge sets up one hell of a vibration often heard in the rest of the house.
It s not related to air conditioning it happens even when both apartments have their ac off.
The good news is that most clattering knocking and pounding sounds are not signs of impending doom.
Just find any orifice on the outside of the building and look inside for a loose screen.
Vibrating water supply pipes may cause a vibration sound in your house s plumbing which you may hear through the toilet as it refills the tank with water.
I ve been hearing a vibrating motor sound throughout the entire house in the walls.
I would suggest you check your water heater pressure relief valve now to see if it went off or is currently pouring out water.
I ve had the phone company come out and check the line the noise is coming in the approximate location where the phone line meets the house.
Rattling knocking and or vibrating pipes can make any homeowner wonder if the plumbing is about to burst through the walls.
Pipe vibration not only can be annoying but it may lead to pipe damage as the vibrations split weld joints.
Normally a leak unless so large as to cause pretty much immediately visible water on a floor or maybe outside faucet or sprinkler system leaking heavily due to freezing will not cause vibration just a whishing or gentle water flowing sound like if a faucet or toilet is dripping.
Again only the outer walls that separate us from the outside and really only the front door area.