previous
  • Video: Install a Fence
    Video: Install a Fence
  • Radiant Heat Comparison
    Radiant Heat Comparison
  • Read FHB on Your iPad
    Read FHB on Your iPad
  • Design Inspiration
    Design Inspiration
  • 7 Trim Carpentry Secrets
    7 Trim Carpentry Secrets
  • 7 Smart Kitchen Solutions
    7 Smart Kitchen Solutions
  • Ultimate Deck Build 2015
    Ultimate Deck Build 2015
  • All about Roofing
    All about Roofing
  • 9 Concrete Countertops Ideas
    9 Concrete Countertops Ideas
  • Video Series: Tile a Bathroom
    Video Series: Tile a Bathroom
  • Clever daily tip in your inbox
    Clever daily tip in your inbox
  • 7 Small Bathroom Layouts
    7 Small Bathroom Layouts
  • Magazine Departments
    Magazine Departments
  • Energy-Smart Details
    Energy-Smart Details
  • Remodeling Articles
    Remodeling Articles
  • Master Carpenter Videos
    Master Carpenter Videos
  • Cut Drywall Without a Square
    Cut Drywall Without a Square
  • Basement Remodeling Tips
    Basement Remodeling Tips
  • Tips & Techniques for Painting
    Tips & Techniques for Painting
next
Pin It

Vent an Island Sink...and Other Tricky Spots

A handy one-way valve eliminates most of the plumbing work

Putting a sink in a kitchen island used to mean that you had to run a complicated plumbing vent loop up, down, and under the floor until you reached a wall where you could extend the vent line through the roof. Enter the air admittance valve (AAV). This handy gadget is a one-way valve that allows air to enter when the sink is drained but keeps sewer gases trapped in the vent line. Lynn Underwood, a building official in Norfolk, Virginia, gives the pros and cons of AAVs. You'll learn where you can use them, how to install them, and how to convince your building inspector if (s)he's dubious.

Vent an Island Sink...and Other Tricky Spots
Plus get a free gift
Become a Fine Homebuilding Member. Start your free trial now