I apologize for placing this in the wrong forum. I guess when I searched on studor vent, I found 5 threads that were all under the General Garage Discussion and thought that there would be people who knew about them.
I think that some hardware cloth and a hose clamp might be a better solution...
My house is typical rural setup with a well and a septic tank. There is actually the main house and right next to it is a guest house. The weird thing is there are studor vents attached to the top of the vent pipes that penetrate the roof.
I thought that these vents were supposed to be used...