Hello.

[gargalaxy]

Hi everyone, my name is Alex and I'm a plumber for 14 years, hold a plumbing contractor certification and shop owner. Also hold backflow (test and repair) certifications. Glad to found this forum.

[Rick Cantrell]

Hello Alex

Perhaps you can answer a question.
In reference to this thread; http://www.inspectionnews.net/home_inspection/electrical-systems-home-inspection-commercial-inspection/41315-meter-hose-bibb.html

Is it allowed to have a shutoff past an AVB?

[gargalaxy]

PVB (pressure vacuum breaker): 2 shut off.
AVB (atmospheric vacuum breaker): just one shut off.
Both looks kinda similar but is not.
You're totally right, not allowed.