can wax seal leak gas but not water?

[dallas homeowner]

thanks in advance for feedback.

question: if a toilet appears to be properly seated (no rocking, etc), can a possible failed wax ring still be leaking sewer gas but not water?

 

[Cass]

It is possible but most times it leaks water.

 

[Sponsor]

 

[DIY-JourneyMan]

How could you tell if you have bad wax?

Duan