Posts about

Water and Wastewater (5)

Abusing Affinity

March 4, 2021

The pump affinity laws are a way to compare pump performance when parameters like speed and impeller diameter change. For a given pump impeller..

Hats Off to Engineers

February 23, 2021

My father was a classic engineer. If you asked him the time, he’d tell you how to build the watch.

Finding Closed Valves (Before They Find You)

February 22, 2021

Isolation valves are an essential part of water distribution systems. Without them, a single pipe break can shut down an entire system while..

Success Story | Project-specific Training Helps Engineering Firm Meet Tight Deadlines

February 19, 2021

Alliance Group Enterprise (TAGE) Los Angeles, California Engineering and Construction Management

What’s the Right Velocity for Flushing?

February 9, 2021

Flushing water mains is one of the accepted methods for cleaning a water main and reduce water quality complaints due to color and turbidity, or..

Where Did this Equation for Hydrant Flow Test Results Come From?

February 2, 2021

Those of you who work with water distribution systems generally need to determine the flow that can be delivered to a fire at some minimum..

Which Head Loss Equation is Right?

January 26, 2021

  In order to do any kind of hydraulic modeling, whether it is for water distribution, sewage or stormwater, it is necessary to determine the head..

Modeling Complicated Controls in Water Systems

January 15, 2021

  Modeling pump status or speed or valve position is generally pretty straightforward in most automatically controlled systems. The modeler just..

Premise Plumbing

January 12, 2021

In the past, it was felt that if a water utility delivered good quality water with adequate pressure to the customers’ meters, it was doing a good..