Good Morning, We have a new issue with our house. When we flush the toilet, the shower makes a clunking noise. With a bit of research it sound like our vent pipe could be clogged. We had about 30 inches of snow last week, the same day this started. Is it possible that snow in our vent pipe is clogging this? If so, is it harmful for this to be happening while we wait for it to melt? Or should we get someone up on the roof? If not, what else could be causing this? Thanks so much for your help!