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Time and again the question arises:  how durable is a fiberglass flume anyway?  To understand the answer, it is important to understand the nature of fiberglass. Fiberglass (aka glass-reinforced plastic, glass-fiber reinforced plastic, glasfaserverstärkter…

Since its development at the beginning of the last century, the Parshall flume has proven to be a versatile and long-lived invention for the measurement of water in open channels.  More Parshall flumes are sold for water measurement than all other flume types…

Whether you call them nested, dual-range, or flume reducer inserts (and we've heard them all), nested flumes are an innovative solution to the problem of measure two substantially different flow ranges over time.  By nesting a small, lower flow rate flume inside of a…

One of the advantages of the Parshall flume is how easy it is to use!  Unlike Palmer-Bowlus or RBC flumes, there are no zero height offsets to worry about.  Just inspect the flume, find the point of measurement, and stick / gauge to the bottom of the flume.  Under…

In order to better understand flumes and how they can be applied to the measurement of flows in open channels it is useful to understand the sections of a flume and their specific functions.