CURRENT ISSUE
January – June 2026
The current issue of Working Pressure is the Water Quality & Efficiency Issue. This issue includes articles about plumbed emergency equipment, bottle filling stations, point-of-use water filtration, lessons learned from legionella outbreaks, and more.
View the electronic flip-book edition of the issue by clicking the cover. You may also browse the individual articles below.
Printed editions of Working Pressure are reserved for ASSE International members. If you’d like to receive printed editions, become a member at asse-plumbing.org/membership.
FEATURES
Bottle Filling Stations’ Origins & Future
In most facilities, drinking water systems tend to fade into the background. They’re required by code and expected to work, but they’re rarely revisited...
Legionellosis Outbreaks! What Have We Learned?
The year is 2015. It’s August. The setting is a 400-plus-person veterans home in Quincy, Illinois. Quincy lies in west-central Illinois on the banks...
Beyond The Water Management Plan
For years, senior living operators facing a Legionella-related regulatory inquiry or legal action could point to one foundational defense: we had a water management...
REGULARS
ASSE 1071 & ASSE 1085
With this edition of Working Pressure magazine focused on health and safety, it is an ideal moment to highlight two ASSE standards that directly...
Water Quality, Dead Legs & Backflow Prevention
When we deliver clean, safe potable water from the water distribution system to a service line supplying a consumer facility, is our job of...
ASSE 5110 Backflow Testers in California
With some confusion and misinformation regarding acceptance of ASSE's backflow prevention assembly tester certification in California, I'd like to answer some frequently asked questions...
Certifying to ASSE 1085
In this article, I will be discussing the testing requirements of ASSE 1085, Performance Requirements for Water Heaters for Emergency Equipment. Because this article...
Second Quarter 2026 Update
As state legislatures move through their 2026 sessions, policymakers across the country continue examining workforce development, water infrastructure investment, building efficiency, and alternative water...
ASSE Series 22000-2026for Water Treatment Equipment Personnel Now Available
ASSE/IAPMO/ANSI/CAN Series 22000-2026, Professional Qualifications Standard for Water Treatment Equipment Personnel, has been designated as an American National Standard by the American National Standards...
Health and Safety
As members of ASSE International, health and safety are more than topics of discussion — they are responsibilities we carry every day. In developing...
4” Apollo RP4A
QUESTION:I am working on a 4” Apollo RP4A. Can you tell me about this assembly? How do I replace the check valve discs and...
Backflow Prevention & Health and Safety Quiz
According to the ASSE International Plumbing Dictionary, working pressure is the maximum pressure in a water piping system allowable under normal working conditions. Likewise,...
Ten Questions With … Kevin McDonough
In each issue of Working Pressure, we ask 10 questions to a training coordinator or instructor of an ASSE-approved training provider. Some questions are...
Standards & Health & Safety
One thing those in our industry can take pride in is that we make health and safety a priority. Modern plumbing is one of...