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Old 07-16-2012, 08:01 PM   #16
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Got a Studor AAV valve still a question about height!


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Originally Posted by Alan View Post
I don't really understand the way he referenced the AAV versus STUDOR argument.

An AAV is an air admittance valve.


Studor is a brand of air admittance valve.


The relationship really goes no further than that. I've heard the same things that he was touting to you over the phone, but in our code, it's an alternate method, which to me says : If there is no other way of doing it, then it's allowable.
he was saying those Pro Vents at HD are also called AAV they are cheap little plastic housing with a spring mechanism and the Studor also is an AAV but it does not work with any mechanical parts to wear out. I think it is like a piston sliding in a cylinder housing so that's the differentiation he said he believes some plumbers use AAV to describe any AAV but my questions is for those that say the see AAV's leak "all the time" are these black pro vents or Studor brand AAV vents usually mini-vents. If anyone has had Studor mini-vents fail "all the time" I'd hope you'd post about it. thanks

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Old 07-16-2012, 08:46 PM   #17
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Got a Studor AAV valve still a question about height!


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Originally Posted by petros151 View Post
he was saying those Pro Vents at HD are also called AAV they are cheap little plastic housing with a spring mechanism and the Studor also is an AAV but it does not work with any mechanical parts to wear out. I think it is like a piston sliding in a cylinder housing so that's the differentiation he said he believes some plumbers use AAV to describe any AAV but my questions is for those that say the see AAV's leak "all the time" are these black pro vents or Studor brand AAV vents usually mini-vents. If anyone has had Studor mini-vents fail "all the time" I'd hope you'd post about it. thanks
I can't answer that because only recently(less then a year) have AAV's, a code definition, been allowed in my state.
And it's only under certain conditions.
And it's subject to the AHJ's approval.
And it must carry a UPC approval stamp.

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