What are these pipes outside?

[Leelahenry]

Hi
I’m wondering what these pipes are? We moved into a bungalow and there are two pipes that go from the ground outside to just above the roof, there’s one out the back and one round the side of the house. I’m wondering what they are? And could they be making a strange noise? I’ve heard a weird hum since we moved in! Thanks

 

[dilalio]

Photos?

 

[Leelahenry]

Sorry I will post some photos in the morning

 

[Nige F]

Hi
I’m wondering what these pipes are? We moved into a bungalow and there are two pipes that go from the ground outside to just above the roof, t And could they be making a strange noise?

The pipes, the pipes are calling.....

 

[Leelahenry]

 

[bernardgreen]

Vent pipes for sewer / drainage system.

 

[Nige F]

Drain vent pipes - maybe the wind blowing across the top could make a noise. Could be wind round that chimney cowl too

 

[Mottie]

Stink pipes.

 

[dilalio]

View attachment 154862 View attachment 154863 View attachment 154864

As others have advised, they are vent pipes for the drainage underground and in your property. Wind could be causing them to sing like a flute and this could be across the top of them or elsewhere in the system.

 

[Leelahenry]

Many thanks for you replies.
Could there be a constant rumbling noise coming from these pipes? I think I may have tinnitus but I don’t hear it anywhere else but at home. I’m getting to the end of my paitients with it thanks

 

[Gasguru]

Perhaps you suffer from low frequency noise sensitivity...and the source is elsewhere. Tinitus has nothing to do with low frequency droning etc.

 

[Leelahenry]

What is low frequency noise sensitivity? Do you mind me asking? There is very little noise here where we are, we are out in the countryside so no factories or anything like that near by. I have exhausted most possibilities at this stage so tinnitus seems to fit the bill, although I’m not convinced

 

[Gasguru]

https://www.salford.ac.uk/research/...ow-frequency-noise/frequently-asked-questions

I can hear 80Hz droning from air conditioning fans several miles away.
The microphone in an old Ipad running a spectrum analyser app is sufficiently sensitive to show the noise indoors (a mile from the source).
The noise is very dependent on the weather...low cloud base/fog/wind etc and poor maintainance of the fan units eg. loose panels.

In towns the low frequency noise might be masked by the background noise but out in the sticks....

It can drive you insane...especially when no one else hears it.

I'd rule out the soil vent pipes by temporarily covering them just in case wind is causing them to resonate...google Helmholz resonator

 

[Leelahenry]

Might be a stupid question but how would I cover up the vents? Any advice?

 

[Madrab]

Tie plastic bags over them temporarily, you just want to eliminate any chance of noise/vibration being created at the top of the vent - like you get when blowing across the top of a bottle