Domestic hot water systems should be designed to limit the risk of pathogen issues including Legionnaires Disease. Avoiding risk in the design of these systems …
Domestic Hot Water: Pathogen Mitigation
Hot water plumbing system design is a hot topic. The building plumbing design/engineering team is faced with a variety of new products, standards, and codes. …
Water Heaters & Hard Water: Template Assisted Crystallization
Hard water is the enemy of plumbing system water heater efficiency and life. Many water heater manufacturer’s warranties are affected by hard water precipitate. We …
Happy New Year! What You Can Expect This Quarter at Deppmann
Happy New Year! We look forward to another year of the R. L. Deppmann Monday Morning Minutes, as well as, some exciting educational seminars and …
B&G Pumps in Chlorinated Swimming Pool Applications
We often get questions about using Bell & Gossett pumps in institutional and commercial chlorinated water swimming pool applications. Here are a few suggestions about …
Ice Rink Cooling System – Commissioning the Glycol Expansion Tank
A customer recently called us about an unusual occurrence in a closed hydronic cooling system for an ice rink. The system was filled using a …
Constant Speed 2-Way Control vs. Variable Speed Pumps for Heating and Cooling Coils (Part 2)
An engineer asked a question about using a variable speed pump for air temperature control in lieu of a two-way control valve. What are the …
Constant Speed 2-Way Control vs. Variable Speed Pumps for Heating and Cooling Coils (Part 1)
An engineer asked a question about using variable speed pumps for air temperature control in lieu of a two-way control valve. The question clearly makes you …
Hydronic Primary-Secondary Piping – How Important are the Two Close Tees?
Every year we get questions about the importance of primary-secondary piping rules around boilers and coils. Recently, I also received a call about using a …
Making Smart Water Heater Choices
Introducing the New R. L. Deppmann Plumbing Website Looking to learn more about the differences in commercial and institutional water heater types and manufacturers? We …