Tom Walski, Ph.D., P.E.

We’ve all been there. You have a problem with your internet, a new dishwasher, or software … Typically, your next step is to go on the service..

Valves tend to be the most ignored appurtenances in our systems … until you need them, then they are the most valuable. If you never had to shut down..

I occasionally hear people say they use a second-order equation to model chlorine decay when in a perfect world, chlorine decay should follow a..

The title of this blog comes from a question asked by one of our Bentley OpenFlows users. If the temperature of water in a pipe changes, does head..

The correct answer is “Never.” A variable frequency drive (VFD) is generally described as a “motor control device that controls the speed of AC..

We regularly seek feedback from our users on how we’re doing. In a recent survey, we received excellent scores across the board on our OpenFlows..

Not quite. What exactly do you get with a 2 ½ inch hydrant outlet? It depends a lot on where you are and when the hydrants were manufactured. There..

Engineering usually involves a good deal of time solving complicated systems of equations. A century ago, engineers spent much of their time..

The story of the history of water distribution system analysis (WDSA) is pretty fascinating, at least to me. There have been a large number of..

In last week’s blog, Neil Grigg, one of the most respected water resources engineers for several decades, discussed how innovation could solve a lot..