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#81 ·
SewerRatz said:
Definition of MECHANICAL

a : relating to, governed by, or in accordance with the principles of mechanics <mechanical energy>

b : relating to the quantitative relations of force and matter <mechanical pressure of wind on a tower>

Part (a) of the definition applies to the movement of the diaphragm. part (b) has to do with the atmospheric pressure that moves the diaphragm.
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when i go to the supply house to buy these... i ask for a mechanical vent...lol. they hand me one right over the counter no questions asked...its mechanical hahaha
 
#83 ·
#86 ·
WOW! This whole AAV thing has sparked such debate. Who wants to get another Union Vs Non Union thread going? That way we can bicker about something besides the AAV. How about Flat Rate Vs Hourly? That's a good one! Or we can talk PEX Vs Copper! Anyone? Anyone? *Points around room*

-What works for me, may not for you.
-You like Pex, I hate it!
-I hate New construction, You love it!
-I think Thinwall should be prohibited, you think it's just fine.
-I use a Hole Hawg, You use a Super Hawg.
-I like Milwaukee and Dewalt, you like Ryobi and Craftsman.
-Your code allows this, mine does not.


We're all Professionals! (Least most of us are). We all have our opinions and we all have different codes to observe. I'm not a fan of the AAV either, but as long as It's ASSE 1050 or 1051, I WILL use it if I NEED to. And I do not give a rat's A$$ what anyone thinks! If you're municipality prohibits the AAV, fine! You do not have to worry about them!

When it comes down to it, we all have preference and we all have an opinion.
 
#88 ·
Triplecrown24 said:
WOW! This whole AAV thing has sparked such debate. Who wants to get another Union Vs Non Union thread going? That way we can bicker about something besides the AAV. How about Flat Rate Vs Hourly? That's a good one! Or we can talk PEX Vs Copper! Anyone? Anyone? *Points around room*

-What works for me, may not for you.
-You like Pex, I hate it!
-I hate New construction, You love it!
-I think Thinwall should be prohibited, you think it's just fine.
-I use a Hole Hawg, You use a Super Hawg.
-I like Milwaukee and Dewalt, you like Ryobi and Craftsman.
-Your code allows this, mine does not.

We're all Professionals! (Least most of us are). We all have our opinions and we all have different codes to observe. I'm not a fan of the AAV either, but as long as It's ASSE 1050 or 1051, I WILL use it if I NEED to. And I do not give a rat's A$$ what anyone thinks! If you're municipality prohibits the AAV, fine! You do not have to worry about them!

When it comes down to it, we all have preference and we all have an opinion.
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Wtf?? No folding tape or folding ruler code??
 
#89 ·
Triplecrown24 said:
WOW! This whole AAV thing has sparked such debate. Who wants to get another Union Vs Non Union thread going? That way we can bicker about something besides the AAV. How about Flat Rate Vs Hourly? That's a good one! Or we can talk PEX Vs Copper! Anyone? Anyone? *Points around room*

-What works for me, may not for you.
-You like Pex, I hate it!
-I hate New construction, You love it!
-I think Thinwall should be prohibited, you think it's just fine.
-I use a Hole Hawg, You use a Super Hawg.
-I like Milwaukee and Dewalt, you like Ryobi and Craftsman.
-Your code allows this, mine does not.

We're all Professionals! (Least most of us are). We all have our opinions and we all have different codes to observe. I'm not a fan of the AAV either, but as long as It's ASSE 1050 or 1051, I WILL use it if I NEED to. And I do not give a rat's A$$ what anyone thinks! If you're municipality prohibits the AAV, fine! You do not have to worry about them!

When it comes down to it, we all have preference and we all have an opinion.
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TC is the voice of reason???? What is this forum coming to???
 
#92 ·
SewerRatz said:
It's called pay offs. If you read the plumbing code as I pointed out in past posts, AAV do not allow the emission of air. let me say that again AAV DO NOT ALLOW THE EMISSION OF AIR with that said it does not meet Illinois Plumbing Code. The loop vent does meet the Illinois Plumbing Code.

If you are installing AAV's in the state of Illinois you are breaking Illinois Plumbing Code and doing a disservice to your plumbing license.
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Actually AAV do allow air to enter. The problem with them is they seal tight with positive pressure. The IPC allows AAV use. In Ohio they have become a stinking problem for the homeowner. All it takes is one sewer fly to keep them from sealing.
 
Discussion starter · #93 ·
Triplecrown24 said:
LOL! How did this rough in turn out? New Pics? You got the water ran yet? Are you going to pre fab your drops? Or are you coming in from above?
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Eh not that great. I screwed up the wet vent so had to tie in another individual. Lesson learned on that one. Pexd the water up through the floor. Trapped the shower from first floor ceiling after the carpenter boxed it out for me. They didn't want me super hawging any joists so that didn't help... Floor is down now and no I didn't take any more pics. All in all it works and it was a good learning experience.
 
#94 ·
double45 said:
Eh not that great. I screwed up the wet vent so had to tie in another individual. Lesson learned on that one. Pexd the water up through the floor. Trapped the shower from first floor ceiling after the carpenter boxed it out for me. They didn't want me super hawging any joists so that didn't help... Floor is down now and no I didn't take any more pics. All in all it works and it was a good learning experience.
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His so called JM not a plumber.. freaking handyman learning under Jnosh...
 
#95 ·
Ghostmaker said:
Actually AAV do allow air to enter. The problem with them is they seal tight with positive pressure. The IPC allows AAV use. In Ohio they have become a stinking problem for the homeowner. All it takes is one sewer fly to keep them from sealing.
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Emission of air is the opposite of admission of air. Emission is allowing the flow of positive pressure of air out of the venting system. Admission is allowing air to enter the venting system when negative pressure is present.
 
#96 ·
double45 said:
Eh not that great. I screwed up the wet vent so had to tie in another individual. Lesson learned on that one. Pexd the water up through the floor. Trapped the shower from first floor ceiling after the carpenter boxed it out for me. They didn't want me super hawging any joists so that didn't help... Floor is down now and no I didn't take any more pics. All in all it works and it was a good learning experience.
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I told you not to mess around, and you went ahead and did anyway. Lesson learned, and least you admit it.
 
#97 ·
The aav are legal here in Phoenix. Inspectors would rather have that than a island vent. Don't know why but they do. I have one used one and that was in Scottsdale, Az and it was ok by the plumbing inspector. The roof on this building was some sort of new vinyl type membrane and the repair to it was around a 1,000.00. Contractor took his case to them and they bought it and allowed me to install a 4" aav. I didn't argue with anyone.
 
#99 ·
SewerRatz said:
You do realize there is around dozen other states that do not allow AAV's? and around 9 other states with only partial approval? http://www.ipscorp.com/plumbing/studor/reference/approvals
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okay so this chart is either wrong in my case or i just can't read it. It says wyoming is upc but we are ipc and that studor vents are not approved but studor vents all the rage here for some reason. state heath inspectors love them when we remodel nursing homes do to the fact a plumbing vent must be 25' away from the fresh air on a rooftop unit
 
#100 ·
When they first came out in the Ohio code everyone was using them. After the state head inspector and staff studied the engineering documents from the manufacture and noticed that they were basing the usage on the old state code. Pretty much UPC they started restricting there use and added vents on the branches of an AAV. Bottom line it was no longer cheaper to use them.
 
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Ghostmaker
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