Drain Waste and Vent Pipes - Hanger Spacing
Support of Drain Waste and Vent - DWV - pipes.
Both vertical and horizontal drainage pipes must be supported properly. Recommended maximum distances between the hangers are indicated in the table below.
|Piping Material||Distance between Supports (ft)|
|Horizontal Pipe||Vertical Pipe|
1) For cast iron stacks, the base of each stack must be supported