Vent a Kitchen Island Sink with an Air-Admittance Valve - Fine Homebuilding
previous
  • 7 Trim Carpentry Secrets
    7 Trim Carpentry Secrets
  • Remodeling in Action
    Remodeling in Action
  • Basement Remodeling Tips
    Basement Remodeling Tips
  • Solid Deck-Framing Advice
    Solid Deck-Framing Advice
  • 9 Concrete Countertops Ideas
    9 Concrete Countertops Ideas
  • Deck Design & Construction
    Deck Design & Construction
  • Video: Install a Fence
    Video: Install a Fence
  • Gallery: Custom Flooring
    Gallery: Custom Flooring
  • 7 Small Bathroom Layouts
    7 Small Bathroom Layouts
  • 7 Smart Kitchen Solutions
    7 Smart Kitchen Solutions
  • 12 Remodeling Secrets
    12 Remodeling Secrets
  • Video Series: Install a Rock-Solid Tile Floor
    Video Series: Install a Rock-Solid Tile Floor
  • Read FHB on Your iPad
    Read FHB on Your iPad
  • All about Roofing
    All about Roofing
  • Clever daily tip in your inbox
    Clever daily tip in your inbox
  • Magazine Departments
    Magazine Departments
  • Energy-Smart Details
    Energy-Smart Details
  • Tips & Techniques for Painting
    Tips & Techniques for Painting
  • Master Carpenter Videos
    Master Carpenter Videos
  • Video: Build a curved step
    Video: Build a curved step
next

The Daily Fix

The Daily Fix


Vent a Kitchen Island Sink with an Air-Admittance Valve

comments (2) July 4th, 2010 in Blogs
rwotzak Rob Wotzak, Web Producer

Air-admittance valves work simply and offer venting flexibility.
Large AAV
Medium AAV
Air-admittance valves work simply and offer venting flexibility.Click To Enlarge

Air-admittance valves work simply and offer venting flexibility.


by Lynn Underwood


Suction opens the valve, and gravity closes it

Sewer gases trying to escape seal the diaphragm to the rim of the air-inlet basket, which keeps the gases inside the pipe. When a sink is drained or a toilet flushed, this slight positive pressure is relieved because air is sucked in through the basket. This rushing air pushes up the diaphragm, connecting the basket to the drainpipe. After the flush, gravity drops the diaphragm back into place.

Click to enlarge image
Ait-admittance valve



You can vent more than just one sink

Large AAVs Medium AAVs Small AAVs
Pleated pouch bag Make a sack Box the bottom corners
160+ DFU; $35. Cap a main vertical vent stack in the attic and vent most fixtures in a house.   20 DFU; $30. Can cap a vent stack in the attic or vent a high-volume horizontal branch line.   6 DFU; $25. Can vent a single horizontal branch line, such as a bathroom.

Read the complete article...
Vent an Island Sink...and Other Tricky Spots
A handy one-way valve eliminates most of the plumbing work
by Lynn Underwood
Get the PDF

 


posted in: Blogs, kitchen, plumbing, built-ins

Comments (2)

Moshup_Trail Moshup_Trail writes: I agree. What a pain the backside.
It just increases my resolve NOT to pay twice.
There are so many other similar sites.
Posted: 9:50 pm on July 8th

Dreamcatcher Dreamcatcher writes: Nice, making this a members only article. What's the point in that.

I have never understood why I should have to pay [more] to be an online member when I have been a magazine subscriber for years. What a lame money grab. You know you guys already make plenty of money off magazine subscriptions and advertising. Hanley Wood Publications doesn't even charge me a magazine subscription. Plenty of other -free- sources of construction information on the internet. Sorry to see you aren't one of them.

DC
Posted: 7:34 am on July 6th

Log in or create a free account to post a comment.