All walls or a specific wall?
not all walls.. however it feels stronger on certain ones
All walls or a specific wall?
I would go out and turn off the water at the street, open a valve and remove pressure and see if it stops.
one breaker off at a time, off then back on;Can feel the vibration in the wall; city; no propane
not quite following you ??
In-house shutoff valve, something like this:
http://media.askbuild.com/legacy/col386.jpg
Looking at some further threads online...
Lots of people end up finding it's related to water pipes, even when nothing appears to be using water. Often leaks in a pipe are found to be the culprit, sometimes on the supply line outside the house. In that case, turning off the house valve will not stop the sound - but turning off the street supply might. But a leak out on the street might still hum enough to transmit thru the pipe to the house.
Other people attribute the hum to the transformer on the house or at the street. These can hum even with the mains switched off; there's still electricity going thru the transformer at all times.
Another site notes that the "Smart Power Meter" on the outside of the house can hum - even when the house power main circuit breaker is switched off, the meter is still powered by a small transformer that can hum.
Others suspect that the smart meters cause electromagnetic interference that can create all kinds of problems including audible hum. It's sometimes called the "smart grid syndrome" if you want to Google it. (Put on your tinfoil hat first... don't blame me if you become a raging conspiracy theory lunatic.)
Also, it's possible if you live near high voltage power lines, the electronic field caused by the lines can cause metal items in the house to vibrate.
Others have noted that the gas meter can hum.
My last suggestion: buy an old noisy refrigerator that whines and hums so loud that you won't hear the mystery noise. Want mine?
That's what I have.. will try tonight
Looking at some further threads online...
Lots of people end up finding it's related to water pipes, even when nothing appears to be using water. Often leaks in a pipe are found to be the culprit, sometimes on the supply line outside the house. In that case, turning off the house valve will not stop the sound - but turning off the street supply might. But a leak out on the street might still hum enough to transmit thru the pipe to the house.
Other people attribute the hum to the transformer on the house or at the street. These can hum even with the mains switched off; there's still electricity going thru the transformer at all times.
Another site notes that the "Smart Power Meter" on the outside of the house can hum - even when the house power main circuit breaker is switched off, the meter is still powered by a small transformer that can hum.
Others suspect that the smart meters cause electromagnetic interference that can create all kinds of problems including audible hum. It's sometimes called the "smart grid syndrome" if you want to Google it. (Put on your tinfoil hat first... don't blame me if you become a raging conspiracy theory lunatic.)
Also, it's possible if you live near high voltage power lines, the electronic field caused by the lines can cause metal items in the house to vibrate.
Others have noted that the gas meter can hum.
Turn off the main water valve coming into the house. Typically in a metal box in the yard near the street. Pipe wrench works. Go back inside and turn on a faucet until and let it run until nothing comes out. Check and see if it stops.
Answer the question, where do you live, calvert???????????????????????????????????
ha ha... I've been turning up the volume on my tv to drown the sound out!