Does the rule of having the back siphon be at least 6" higher than the sprinkler head also apply to the hose bib? I would guess so but cannot find anything to back it up.
been a standard for quite a while & many new have internal designed
install vacuum breakers at all exterior threaded hose bibs & sillcocks
duh… why didn’t I remember that? Guess at 46 I am already having a senior moment. Thanks Mr. Adair…