Air Admitttance valve Durgo

[Duck1985]

im using one in a basement too, it will work as long as you can get a decent fall in the run

[libertymi]

Im actually giddy because it means i dont have to cut a whole in my roof ot tear out all my drywall

[Duck1985]

ye im training to be an architect so this vid was quite useful,

god I hate learning about shit