Install Sanitary Tee Fitting — Attach Vertical Vent Pipe
Part of project
How to Install an Air Admittance Valve (AAV) · Step 5 of 7
In this video
Take a PVC sanitary tee fitting and apply PVC primer to the inside of the hub that will connect to the vertical pipe. Then, apply both primer and cement to the top end of the newly installed PVC pipe. Push the tee fitting firmly onto the pipe with a slight twisting motion to ensure a good bond. Finally, hand-tighten a threaded cleanout plug into the side port of the tee, using pliers for a final snug turn if necessary.
Goal: Attach the sanitary tee and cleanout
- Hold the fitting in place for 30 seconds after connecting to prevent it from pushing back off due to pressure.
Used in this video
- Pliers (Tool Type: Hand Tools, Power Source: Manual, Purpose: Fastening) · optional — To give the cleanout plug a final tightening.
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FAQs
What are the most important safety precautions I should take when installing an AAV?
Always wear appropriate personal protective equipment, including safety glasses and gloves, especially when cutting PVC pipe and handling chemical solvents. Ensure the work area is well-ventilated when using PVC primer and cement to avoid inhaling fumes. Have a bucket ready to catch any residual water from the drain line.
Do I really need all those specific pipe cutters and deburring tools for this project, or can I use a simpler tool?
While a hacksaw can cut PVC, specialized pipe cutters (like the ratcheting PVC cutter or plastic tubing cutter) provide much cleaner, straighter cuts with less effort, which is crucial for a tight seal. A deburring tool is also highly recommended to smooth edges, preventing snags and ensuring the best bond with primer and cement.
How long does a typical AAV installation take for a beginner, and what's the estimated cost of materials?
For a beginner, this project typically takes 1 to 3 hours, depending on preparation and experience with plumbing. The material costs, including the AAV, PVC fittings, primer, and cement, usually range from $30-$60, assuming you already have basic tools like a tape measure and bucket.
Where is the ideal location to install an AAV on a sink drain line for optimal performance and code compliance?
The AAV must be installed vertically, at least 4 inches above the horizontal drainpipe it serves, and critically, above the fixture's flood level rim. This prevents water from entering the valve and ensures proper air intake, while complying with most plumbing codes.
TranscriptHide
Auto-generated transcript. May contain errors.
Install Sanitary Tee Fitting — Attach Vertical Vent Pipe
Part of project
How to Install an Air Admittance Valve (AAV) · Step 5 of 7
In this video
Take a PVC sanitary tee fitting and apply PVC primer to the inside of the hub that will connect to the vertical pipe. Then, apply both primer and cement to the top end of the newly installed PVC pipe. Push the tee fitting firmly onto the pipe with a slight twisting motion to ensure a good bond. Finally, hand-tighten a threaded cleanout plug into the side port of the tee, using pliers for a final snug turn if necessary.
Goal: Attach the sanitary tee and cleanout
- Hold the fitting in place for 30 seconds after connecting to prevent it from pushing back off due to pressure.
Used in this video
- Pliers (Tool Type: Hand Tools, Power Source: Manual, Purpose: Fastening) · optional — To give the cleanout plug a final tightening.
Frequently Asked Questions
What are the most important safety precautions I should take when installing an AAV?
Always wear appropriate personal protective equipment, including safety glasses and gloves, especially when cutting PVC pipe and handling chemical solvents. Ensure the work area is well-ventilated when using PVC primer and cement to avoid inhaling fumes. Have a bucket ready to catch any residual water from the drain line.
Do I really need all those specific pipe cutters and deburring tools for this project, or can I use a simpler tool?
While a hacksaw can cut PVC, specialized pipe cutters (like the ratcheting PVC cutter or plastic tubing cutter) provide much cleaner, straighter cuts with less effort, which is crucial for a tight seal. A deburring tool is also highly recommended to smooth edges, preventing snags and ensuring the best bond with primer and cement.
How long does a typical AAV installation take for a beginner, and what's the estimated cost of materials?
For a beginner, this project typically takes 1 to 3 hours, depending on preparation and experience with plumbing. The material costs, including the AAV, PVC fittings, primer, and cement, usually range from $30-$60, assuming you already have basic tools like a tape measure and bucket.
Where is the ideal location to install an AAV on a sink drain line for optimal performance and code compliance?
The AAV must be installed vertically, at least 4 inches above the horizontal drainpipe it serves, and critically, above the fixture's flood level rim. This prevents water from entering the valve and ensures proper air intake, while complying with most plumbing codes.
Video Transcript
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Video Transcript
(217 characters)Transcript may be auto-generated and contain errors.