Vibrating Vent stack

[adamsinal]

Hi, my house vibrates everytime the wind blows I have tracked it down to I think the vent stack behind the toilet. I dont think it is clogged I have run a hose down it and didnt hit any blockages. My washer also backs up once in a while I dont know it the two are related.

Thanks
Joey

[krow]

I doubt very much that your stack is vibrating when the wind blows. Its probably something in the vacinity. I have never heard of a stack vibrating. I have heard expansion noises from the stack. (when hot water enters a section of pipe and the pipe expands rubbing on a wood joist or flooring.)

In what position is your washer in relation to the stack ie: basement, ground floor,etc...... and where does it drain.

[adamsinal]

the washer is at the other end of the house but everything intersects right around there. when it vibrates and make the noise, it sounds like someone blowing across a bottle thats what led me to the vent stack. There is nothing else in the wall close to it so i dont know of anything else it could be.

[Herk]

Yes, stacks can vibrate in the wind. Could be tricky to solve. You might try cutting the pipe at a slight angle at the top, with the high point in the direction of the prevailing wind.

[jadnashua]

Extending the vent might get it out of the air stream. There are limits as to how low it can go, but that might help, too. A screen over the top might break up the air stream and solve it too...not sure if that would be okay with the inspectors - it would have to be fairly coarse, or it might freeze up.

[Ian Gills]

I love my cast iron stack.

[Redwood]

this is not quite intended for this application but it may help.
http://www.sweetfilter.com/

[srdenny]

How about putting a vent cap on it, like a Zurn Z-193?