|Posted by Ted on April 16, 2003 at 10:05:32:|
I've got an upstairs sink that thumps periodically when the upstairs air conditioning kicks on. I'm thinking there's pressure being created that's forcing some air back through the p-trap that's causing the thump. I can pull the sink drain almost closed and stop the thump. Any suggestion how I could fix this? Many thanks in advance!
|Replies to this post|
|There are none.|