Opionions on Studer vents / AAV / Air Admittance Valves
Considering having my plumber use Studer vents but am concerned about the "gurgling" noise I keep hearing others complain about. Curious if this noise is guaranteed if I go with an AAV, or if it only occurs in some installations. Any advice?
FYI _ The reason I want to use an AAV is because we have livable attic space above that I do not want the venting to be running through. It has masonry walls so nowhere to hide it.