StormTech Underdrain Detail.

This document is the StormTech Underdrain Detail. A cross section of the underdrain is shown.

In the cross section, details show the StormTech chambers and end cap and the outlet manifold.

Section A-A inset shows the StormTech Chamber, foundation stones beneath the chambers, ADS geosynthetics 601T non-woven textile with dual wall perforated HDPE underdrain.

Section B-B inset shows the StormTech end cap, foundation stones beneath the chambers, ADS geosynthetics 601T non-woven textile with dual wall perforated HDPE underdrain.

A note below describes how the number and size of underdrains, either 4” or 6” for specific models are approved through the site design engineer.