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11-03-2014, 11:56 AM #1
11-03-2014, 12:12 PM #2
Perhaps you can answer a question.
In reference to this thread; http://www.inspectionnews.net/home_i...hose-bibb.html
Is it allowed to have a shutoff past an AVB?
' correct a wise man and you gain a friend... correct a fool and he'll bloody your nose'.
11-03-2014, 12:43 PM #3
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.
Last edited by gargalaxy; 11-03-2014 at 04:13 PM.