Hi,all every time I flush my toilet you can here a gurgling noise in the bathroom sink.is this a major problem or is it ,that my vent pipe my be partially blocked plmk thanks

Hope this helps with your venting problem

Drain noises: diagnosing gurgling, glubbing, blub blub noises and sounds in building drain pipes

Gurgling drains may indicate blocked plumbing venting
A plumbing drain line could itself blocked, as opposed to a blocked or inadequate plumbing vent line. In the case of a partially blocked plumbing drain, case all of the fixtures served by that drain line will always be slow to drain.

When weather and safe access permit going onto a roof (or using the services of a professional for that purpose), check for blocked building plumbing vents such as plumbing vents that may have become blocked by an insect nest, birds nest, or as shown in this photo, a frog. In freezing climates, check in winter to be sure that the plumbing vents are not being blocked by frost or by snow-cover

Hmmm Kelbabe59...

Tell me... is this a basement bathroom... 1st or second floor? Where do you live? Snow/frost present?


How many bathrooms in house? If any other bathrooms do they show gurgling? How about the washing machine?? The sink or dishwasher... look for these things... more detail equals more help.
Any tree branches/leaves above your roof?

Lots of birds in your area... ;)? Let me know, then can help better.

I liked Biggsies page a great deal. Your gurgling is more than likely a vent rpoblem. The toilet is trying to vent itself up the sink drain because your vent stack is compromised or plugged. Rodding from the roof will clear the vent and also drain problems. Try to answer MASS's questions to help pin this down further.