CURRENT ISSUE
January – March 2026
The current issue of Working Pressure is the Water Quality & Efficiency Issue. This issue includes articles about soft water vs. hard water, WaterSense updates, opinions on how commercial facilities can reduce their environmental impact, 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
Soft Water Vs. Hard Water
When people hear the phrase hard water, their imagination sometimes runs wild. You might think that if you spilled a cup of hard water,...
Plumbing For Health
In busy urban healthcare centers, safe water is as essential as medicine — yet it is often taken for granted until something fails. A...
How Can Facilities Reduce Their Environmental Impact, Keep Our Public Water Clean and Healthy,...
In an era of heightened scrutiny over water use, especially for industrial and commercial uses such as data centers, water reuse is more relevant...
WaterSense Remains & Continues To Thrive
As a follow up to an article in Issue 1 2025 of Working Pressure, there’s good news to report regarding the U.S. EPA’s WaterSense...
REGULARS
First Quarter 2026 Update
As 2025 wound down, states began early bill filing and interim policy development ahead of the 2026 legislative sessions. Legislative committees and regulatory agencies...
Our Most Precious Resource
This issue of Working Pressure magazine deals with water quality and efficiency. Our most precious resource is clean water. We are blessed in Wisconsin...
A Look Inside ASSE’s PQ Dept
The Professional Qualifications (PQ) Department continues to play a central role in upholding ASSE International’s longstanding reputation for rigor, integrity, and public safety through...
Industry Standards Accelerate Adoption of Plumbing Tech
Innovation in plumbing is essential for improving water efficiency, safety, and system performance, yet every new technology arrives with a degree of uncertainty. When...
4” Wilkins Model 350ASTDA
QUESTION:I am working on a 4” Wilkins model number 350ASTDA. Can you give me some background about this assembly and explain how to service...
A Lesson From Mary Mallon
I recall learning about Mary Mallon, aka Typhoid Mary, back in my school days. Mary worked at the beginning of the 20th century as...
Backflow Prevention & Water Quality 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,...
ASSE 1086 Changes
Last year, I outlined the updates introduced in the 2025 revision of ASSE 1086, Performance Requirements for Reverse Osmosis Water Efficiency – Drinking Water....
Ten Questions With … Andrew Merino
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...