Backflow

Question: I have to repair a 1" Wilkins 720A. Can you tell me if there are any special tools that I will need, or any...

The most often asked question about backflow protection is also the title of this article, “How do we decide the proper cross-connection...

These days, ASSE International has many different certifications. There are five different certifications related to cross-connection control alone. Sometimes certifications are voluntary – people...

Question: I have a 3” Watts Model 009 that needs to be serviced. I want to replace the check valve discs and relief valve rubber...

A question I’m often asked is, “How can people in the cross-connection industry influence regulations in their jurisdictions to require the necessary testing of...

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...

According to the ASSE International Plumbing Dictionary, working pressure is the maximum pressure in a water piping system allowable under normal working conditions. Likewise,...

Question: I have a 4” Deringer Model 40. Can you tell me how to change the rubber parts for the checks and relief valve? Are...

ASSE International was recently granted a Certificate of Registration for the ASSE One Year Field Test (ASSE 1YT®) certification mark by the...

According to the ASSE International Plumbing Dictionary, working pressure is the maximum pressure in a water piping system allowable under normal working conditions. Likewise,...