I am trying to understand what type of PVC pipe is required for the main septic drain line from the house to septic tank.
The IRC says this:
International Private Sewage Disposal Code 2012
Chapter 5 - Materials
Section 505 - Pipe , Joints and Connections
505.1 Pipe. Pipe for private sewage disposal systems shall have a smooth wall and conform to one of the standards listed in Table 505.1.
I see SCH 40 PVC is acceptable, but what about the thin wall sewer/drain pipes?
I am wanting to know specifically how thick the pipe wall must be, or is this simply a consideration based on the location of the pipe - i.e. traffic areas vs no traffic, tree roots, etc)
Specifically, this item in the IRC has me confused:
Coextruded composite PVC sewer and drain DR-PS in PS35, PS50, PS100, PS140 and PS200
Does that include the thin-wall sewer pipe listed above?