This document is the Septic Stack Bed Installation Detail. A diagram with descriptors and notes explains the septic stack bed. Product chart included.

This Septic Stack Bed Installation diagram shows 6” minimum or 24” maximum cover native, product width and septic stack.

Notes explain installation with directions to excavate beds to proper depth. Smooth irregularities in the excavation because a level/flat surface is required. Lay septic stack pipe in trench 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 trench and connected, lay a filter fabric covering the entire system. Backfill septic stack pipes with suitable native material. “Walk in” place to compact soil along sides and interior soil column first. Cover septic stack to a minimum of 6” of cover and a 24” maximum. No heavy or highway vehicular traffic over top of bed is allowed. Avoid large rocks or debris in cover material.