I have recently installed a kitchen Island and need to know the best way to vent it other than cutting into my walls or running a new vent through the roof. I see ads for "air admittance devices" and also "plumbing check vents" and am wondering about the reliability and safety of such devices. The Island will be the only fixture on this branch. Also, can someone describe how an "Island Loop Vent is configured". Any help will be greatly appreciated.
Thanks,
lbsjack