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Step 1 · Preparation and Safety

First, ensure your safety and prepare the work area. Clear everything from under the sink to give yourself ample room to work. Place a bucket or shallow pan directly under the P-trap and drain arm to catch any residual water when you disconnect the pipes. It's also wise to check local plumbing codes to confirm that AAVs are permitted in your area for this application.

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Step 1 · Preparation and Safety

First, ensure your safety and prepare the work area. Clear everything from under the sink to give yourself ample room to work. Place a bucket or shallow pan directly under the P-trap and drain arm to catch any residual water when you disconnect the pipes. It's also wise to check local plumbing codes to confirm that AAVs are permitted in your area for this application.

Tools and Materials

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How to Install an Air Admittance Valve (AAV)

Step 1 of 7·1.8 hr left

1
Preparation and Safety
15 mins3 itemsBeginner
2
Mark the Cut Location
10 mins3 itemsIntermediate
3
Cut the Drain Pipe
15 mins4 itemsAdvanced
4
Install the Sanitary Tee
20 mins3 itemsAdvanced
5
Attach Vertical Vent Pipe
10 mins6 itemsIntermediate
6
Install the AAV
10 mins4 itemsBeginner
7
Testing for Leaks and Performance
30 mins2 itemsBeginner
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