Chicago’s 1933 World’s Fair and Backflow
In 1933, Chicago hosted the World’s Fair, which resulted in an unintentional backflow disaster. The sewer systems in the city were undersized...
Certification News and Updates
ASSE staff and technical committees are constantly reviewing ways to improve our certification exams.
When you make a commitment...
WaterSense to Publish New Efficiency Specification for POU RO Systems
One of the common technologies used for water treatment are Reverse Osmosis systems. (From this point forward referred to RO.) The EPA...
Ten Questions With … Dustin C. Taylor
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...
From the ASSE International President
Dear Members and Colleagues,
I am delighted to address you in this edition of Working Pressure, dedicated to the crucial topic of water quality. As...
6” Watts Model 909
Question:
I have a 6” Watts model 909 reduced pressure principle assembly with a badly worn and pitted first check valve seat. Are these seats...
How Do Harmonized Standards Affect Product Listings?
My colleague Terry Burger has written in detail about the evolution and benefits of writing harmonized standards (see pages 10-12). Often the...
Why Being Certified Makes a Difference
Have you ever wondered, “Why am I doing this to myself? Why am I taking time away from family/friends to take these...
Lives Depend Upon It
As I reflect on the theme of this edition of Working Pressure, “Fire Protection,” it reminds me of the importance of fire protection systems...
4” Apollo DCDA 4A
Question:
I have a 4” Apollo DCDA 4A that needs service. I am not familiar with this unit. What is the best way to remove...