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Installing new vacuum breaker on a hose bib
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David Nebenzahl
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Posts: 3,469
Installing new vacuum breaker on a hose bib
On 10/3/2008 3:58 AM
spake thus:
On Thu, 02 Oct 2008 21:25:32 -0700, David Nebenzahl
wrote:
It was something of a bitch. I noticed the setscrew on the new one
I bought, but couldn't see or feel any such screw on the old one,
just a round bump. So I just torqued the **** out of it with a pipe
wrench (crescent wrench holding the valve body). I threaded the new
breaker on, then tightened the setscrew. After just a few turns, it
promptly broke off, apparently just as it was designed to do (I
could see it had a narrow shank).
I'd remove those set screws and use standard ones.
I probably will next time. But they're obviously made to snap off on
installation: why is that? (That bump I felt on the old one was the
shank of the broken setscrew.) Makes it really hard to remove them.
By the way, after testing it I could see why these are good things to
install: after turning on the hose bib and letting the hose reel fill
up, I closed the bib, whereupon a large gush of water sprayed out of the
anti-siphon valve. Had it not been there, all that water would have gone
back inside the house plumbing, along with whatever crap was in the hose
(or in a pool the hose was thrown into, in some cases).
--
Washing one's hands of the conflict between the powerful and the
powerless means to side with the powerful, not to be neutral.
- Paulo Freire
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