This document is the Septic Stack Bed Installation (Plan View) Detail. A diagram with descriptors and notes explains the septic stack bed.

This Septic Stack Bed diagram shows no spacing between stacks, product width, sewer & drain and/or triplewall pipe per local regulations and the distribution box.

Notes explain installation with directions to excavate trenches to proper depth. Smooth irregularities in the excavation because a level/flat surface is required. Lay septic stack pipe in bed and assemble as required. Void pipes are to be placed “butted” next to one another. The distribution pipe is connected between adjacent bundles by a bell coupler. Once pipes are laid in the bed and connected, lay a filter fabric covering the entire system. Backfill septic stack pipes with suitable native material. “Walk in” fill to compact soil along sides of septic stack first for load rating. Cover septic stack to a minimum of 6” of cover and a maximum of 24”. No heavy or highway vehicular traffic over top of bed is allowed. Avoid large rocks or debris in cover material.