I'm re-routing a section of 4" landscape drain. "Triple-wall" pipe was initially installed and has been pinched almost completely closed by a nearby tree, so I'm installing Sch 40 DWV pipe and routing as far around the roots as possible.
The original drain network is not glued. I've seen varying opinions online about glue vs. no glue on DWV landscape drain applications. I'm leaning toward adhesive just to prevent root incursion, but want to ensure that there aren't any pros/cons or other considerations that I'm missing.