This document is Bio 3 Biodiffuser Serial Installation Detail. Diagrams with descriptors and notes explains the biodiffuser cluster.

The biodiffuser diagram shows the ADS sewer & drain and/or ADS triplewall OR per local regulation and 12” minimum depth.

The biodiffuser cluster diagram shows the ADS sewer & drain and/or ADS triplewall OR per local regulation, inspection port (TYP) and distribution box.

Notes explain installation with directions to excavate trenches to proper width and depth. Smooth irregularities in the excavation because a level/flat surface is required. Assemble biodiffuser leaching chambers and universal endplates together in trenches. Install universal end cap and secure in place with backfill. Punch out pipe holes openings in the end plates and connect inlet pipes. Fill sidewall area to top of chambers with native soil. “Walk in” fill to compact soil along sides of biodiffuser to achieve load rating. Cover biodiffuser leaching chambers to a minimum of 12” granular cover after consolidation for H-10 applications. Avoid large rocks or debris in cover material. Cover heights and live loading limits are impacted by both soil type and compaction.