AAV Shower Question - Plumbing - DIY Home Improvement | DIYChatroom


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Plumbing

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 01-17-2009, 06:08 PM   #1
Newbie
 
Join Date: Jan 2009
Posts: 4
Rewards Points: 10
Default

AAV Shower Question


I'm installing a shower into a master bath I'm working on in my attic. The shower is too far from my waste stack and other fixtures to tap into any venting on that end. To vent the shower traditionally is going to be a major problem. My question is whether what I have planned with an AAV would work. I'm looking to run an AAV in a stud wall for a closet (with vent for airflow). I'm in PA and AAVs are allowed by code. I've included a (crappy, approximate, and N.T.S.) diagram with what things look like. My trap for the shower is so far away because there's a raised ceiling just below the shower area for about 4 feet of the run. Thanks!
Attached Thumbnails
AAV Shower Question-diag.jpg  

Advertisement

PADIY is offline   Reply With Quote
Old 01-17-2009, 08:00 PM   #2
Member
 
Join Date: Nov 2007
Location: Appleton, Wisconsin
Posts: 942
Rewards Points: 518
Default

AAV Shower Question


I'm not a plumber but i don't think you can put an AAV in the wall. Hopefully someone will confirm or disagree with this for sure. I would call you local building inspector and ask him to be sure

Advertisement

ponch37300 is offline   Reply With Quote
Old 01-17-2009, 11:13 PM   #3
Registered User
 
Termite's Avatar
 
Join Date: Apr 2008
Posts: 6,520
Rewards Points: 2,000
Default

AAV Shower Question


Most...Not all, most...Inspectors will allow an AAV in the wall provided that it is accessible and it can breathe. I'll allow it if an HVAC-type louvered grill is used.
Termite is offline   Reply With Quote
Old 01-18-2009, 10:09 AM   #4
Newbie
 
Join Date: Jan 2009
Posts: 4
Rewards Points: 10
Default

AAV Shower Question


That's why I said "(with vent for airflow)". It's in a closet, so I was going to cut a hole in the wall and put a grille there to keep air flowing to it. Still, anyone know if my plans will work?
PADIY is offline   Reply With Quote
Old 01-19-2009, 10:36 AM   #5
Newbie
 
Join Date: Jan 2009
Posts: 4
Rewards Points: 10
Default

AAV Shower Question


My question wasn't really pertaining to the AAV in the wall itself, but the AAV's position in the line and whether it would vent properly if run off of that 45 and far away from the trap.
PADIY is offline   Reply With Quote
Old 01-19-2009, 07:51 PM   #6
Member
 
Join Date: Nov 2008
Posts: 113
Rewards Points: 75
Default

AAV Shower Question


You need your vent line before the p-trap. The way you have it, once the flow of water is past the p-trap, it would have to pull air through the p-trap from your AAV, which would suck your p-trap dry.
zosoplumber is offline   Reply With Quote
Old 01-19-2009, 08:40 PM   #7
Member
 
Join Date: Nov 2008
Location: North and East Texas
Posts: 79
Rewards Points: 105
Default

AAV Shower Question


Agree with the AAV street side of the trap or the drain water will pull it dry.
Daltex is offline   Reply With Quote
Old 01-19-2009, 10:00 PM   #8
Member
 
Join Date: Jan 2009
Location: Long Island
Posts: 348
Rewards Points: 250
Default

AAV Shower Question


can you fit the trap under the shower stall drain? then you can run your AAV the way you want
II Weeks is offline   Reply With Quote
Old 01-20-2009, 05:49 PM   #9
Newbie
 
Join Date: Jan 2009
Posts: 4
Rewards Points: 10
Default

AAV Shower Question


Quote:
Originally Posted by zosoplumber View Post
You need your vent line before the p-trap. The way you have it, once the flow of water is past the p-trap, it would have to pull air through the p-trap from your AAV, which would suck your p-trap dry.
I had a feeling this was the case. This way surprisingly makes things easier for me. Thanks everyone for all the input!

Advertisement

PADIY is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Shower Arm Question brakea Plumbing 2 01-02-2009 06:58 PM
Moen shower valve question tmbrink Plumbing 5 12-14-2008 11:17 PM
Question about shower valve? Rick Bruner Plumbing 3 03-23-2008 11:09 PM
Bathroom shower sill installation question bocci Remodeling 2 07-23-2006 01:31 PM
Shower stall question... Alan Remodeling 1 05-31-2006 07:57 AM




Top of Page | View New Posts