An Extra Large 60 Degree Trapeozoidal flume installed in a fiberglass manhole used to measure discharge out of a chocolate factory. The manhole is designed for traffic locations (it is mounted in a parking lot) and is provided at the top with a reducer suitable for a standard grade ring / frame / cover set.  

Around the flume fiberglass benching has been installed to provide the operator a clean, safe area from which to work.

To aid the operator, a high visibility staff gauge has been provided to allow for a quick visual determination of the water level in the flume.