Posted 12/8/2016 16:24 (#5684961 - in reply to #5682866) Subject: RE: plumbing question
Central Illinois
As southern farmer said, I would bet your vent is plugged. It may have had some leaves in it before it snowed. That will bridge it up and cause the problem. You will want to snake it first. If it is plugged with something other than snow or ice, you could make things worse with the water.