Problem Identified CoCoWalk, a large multitenant lifestyle center in Florida, was faced with the following water quality challenges across their cooling tower and closed-loop …
Case Study: Reducing Maintenance Burden & System Risk in a Closed Loop Chilled Water System
Problem Identified Henniges Automotive was faced with the following familiar water quality challenges in their closed loop chilled water system: Chronic corrosion Sludge buildup Frequent …
Domestic Water Recirculation Systems Part 1: Flow Rate
The R. L. Deppmann Monday Morning Minutes series will focus on the plumbing portion of the new construction and building facility business for the next few months. The topics will be domestic water recirculating systems, pressure booster systems, volume and instantaneous water heaters, and mixing valves. I’ve had 6 job site visits in the last 2 months to help engineers, service contractors, and facility managers solve problems with domestic water recirculating systems. It seems this is a good place to start.
Case Study: Protecting Domestic Hot Water Systems at Iowa State University
Problem Identified Iowa State University (ISU) was faced with the following water quality challenges across their domestic hot water system: Chronic lime-scale buildup Hard, …
Solving Oversized Pumping Problems
The last two weeks we used the Pump Affinity Laws and the Xylem Bell and Gossett System Syzer® to either trim the impeller or reduce …
The Bell and Gossett System Syzer and Pump Affinity Laws – to resolve a field problem (Part 2)
Last week we used the Pump Affinity Laws to determine what size the impeller would be trimmed to in an oversized pump. Reducing the speed …
The Bell and Gossett System Syzer and Pump Affinity Laws – to resolve a field problem
The Pump Affinity Laws are used to determine the system curve. If we know the point of operation on a pump curve, we can determine …
The Bell and Gossett System Syzer and Pump Affinity Laws
Hydronic heating system flow rates and pressure drops are related through a series of AFFINITY LAWS. Let’s examine the laws and how to use them …
Happy New Year from R.L. Deppmann
The R. L. Deppmann team wishes you a Happy New Year! We look forward to continuing to serve you in 2024. We will be back …
Wishing You a Happy Holidays from R.L. Deppmann
We wish you a holiday season filled with joy and cheer. Happy Holidays from all of us at R.L. Deppmann!









