When a 1/2 inch DVW vent was minimum.

[Glenn]

Did you know there was a year and a code when DWV dry vents could be 1/2-inch diameter. I found a letter in an old code book that sent me on a little research adventure.

I've been sitting on this video for while, because I wanted to redo it and edit it, but that hasn't happened yet. So I decided to share it anyway.

Who else is going to make you a better video on a subject like this? Ha, ha!

Enjoy!

 

[e hilton]

Bridgeport ... At least one WC for two tenements. I guess that’s better than chamberpots.

 

[TheCommish]

was the change to small vent because of copper venting costs