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 …
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 …
Gas Fired Water Heaters – Multiple Units and Future Capacity
When determining the size and number of water heaters to meet the customer’s needs, there are many factors to consider. How many water heaters do …
A Mobile App for Domestic Hot Water Recirc. & Residential Circulators
Someday, there will be a mobile app that can provide a warning when your domestic water and/or residential heating pumps stop working. For smaller gallon …
Domestic Water Recirculation Codes: Here is What We Heard
In the 04-05-2021 Monday Morning Minutes, we asked for your opinion on the length of the domestic water recirculation line from source to fixture. Here …
Domestic Water Recirculation Codes: What Is Your Opinion?
I recently received an email from an engineer discussing the type and location of balance valves in a domestic hot water recirculation system. He brought …
Small Domestic Water Recirculation Pumps: Is it Time to Break a Habit?
Most domestic hot water recirculation pumps are very small. R.L. Deppmann is thankful that most engineers schedule a Bell & Gossett PL-30B or 36B maintenance-free …
Non-Clog vs. Vortex Impeller Choices for Sewage Pump Applications
Plumbing engineers are hired to use their knowledge to provide the right building solution for the money their client is willing to spend. There is …









