DETAIL OF SEWER INSPECTION BOXES in AutoCAD, dwg file.

This Architectural Drawing is AutoCAD 2d drawing of DETAIL OF SEWER INSPECTION BOXES in AutoCAD, dwg file. An inspection chamber is smaller than a manhole and is necessary to maintain the sewer system (e.g. cleaning, flushing the system). It is normally installed at a junction where several pipes are connected or where small diameter pipes are connected to pipes with a bigger diameter.