Backflow

Question: I am servicing a 4” Apollo Model RP4AN. Can you tell me about this assembly, and how to replace the check valve discs and...

Dispensing Equipment Alliance (DEA) is a non-profit membership organization that was formed as a chapter of the International Association of Plumbing and Mechanical Officials...

With very few exceptions, almost every water-based fire protection system requires some form of backflow protection or cross-connection control. On the residential side, multi-purpose...

Question: I have a 3” Watts Model 007DCDA that needs to be serviced. I want to replace the check valve discs. Can you go over...

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

The installation of backflow prevention protection is an important part of internally maintaining the water quality within a facility through the use of isolation...

Question: I am working on a 2” Watts Model 909M1 assembly. The unit has failed the test and I want to replace the rubber parts....

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

I’ve seen wringing of hands and gnashing of teeth whenever the subject of pumps and reduced pressure principle backflow preventers (RPs) is broached. Why...

Today’s complex potable water “production” and distribution systems continue to make significant contributions in helping to sustain the utility and comfort of modern-day Americans....