Gurgling noise in toilets and sinks

[jacobc]

We have a house with 3 bathrooms, 2 on one floor and 1 on another. Recently toilets and sinks in all of the bathrooms have started making a gurgling noise. It's not just a toilet that's being flushed, sometimes it's a toilet not in use or a sink, even a sink with no water running. What does this mean? Is it an indication of a problem, and what do we need to do? Thanks a lot.

 

[tomtheelder2020]

Very odd you have had no response to your post. My excuse is that I have been slammed and am slowly digging my way through old email. I don't claim much plumbing knowledge, and none with 2 story, but my experience with a gurgling toilet or drain is that it likely means a blockage. When water enters the system between the blockage and drain, air in the line is displaced and has nowhere to go but back up through the drain.

 

[user 4883]

Sounds like you have a clog in a drain vent. These are the pipes sticking out the top of your roof. Maybe a birds nest or wasps nest or something.

 

[billshack]

Venting problems either due to improper venting or blockage . I would suggest hiring a plumber to have a look. Venting is one of the things that most do it yourself do poorly.