In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
I have two Gorton vents on my system and one on my neighbors which I suspect to be leaking.
Reason I say suspect is its hard to tell if its just bleeding extra air out or not. 99% sure my neighbors IS leaking, my two I need to investigate more.
What is a good reliable way to test vents? I seem to recall someone posting a picture of a pot on a stove with something screwed into it but I cannot find the thread. I'm wondering if simply turning the vent upside down and blowing into it with your mouth is a reliable test or not?