Posted by Richard Ruby on April 04, 1998 at 15:10:33:
Dear Terry:
We have a 2-story home, and when the downstairs bathroom sink or toilet is used, we hear a noise
from the pipes in the house that sounds like a foghorn. A friend told me it could be caused by air in the vent
pipes--what do you think? What should we do about it?
By the way, you've got a great website!
Thanks,
Richard Ruby