good story. How long did it take your heart rate to come back to normal? David,
what made you think your vent was obstructed? I can't tell you how many customers of mine and DIY forum posts I see on that. I just replaced some vent pipe in a crawl space and the base of the stack at the 1/4 bend was totally obstructed. I only changed it because it made it easier to replumb, not because of any customer issues. It was the only vent for two bathrooms and a kitchen, and they had no complaints.