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aav vents
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  1. Plumbing
    Basement Bathroom Plumbing Challenge This is my first forum thread as well as my first major plumbing project so between the two I hope to survive and maybe learn a little! I am building a full bath in the lowest level of a 1972 split level home. I am adding a toilet, sink, shower, and...
  2. Plumbing
    This is my current plumbing under my kitchen sink: As you can see I installed an OS&B ABS Air Admittance Valve above the sanitary tee, I installed it to get rid of the "glugging" effect when draining the sink or when the dish washer was on. I followed the supplied instructions for...
  3. Plumbing
    We're building a house with a kitchen island. Planned on using an AAV vent for a kitchen island sink. Liscened plumbers tell me that AAV vents are not allowed in houses per national plumbing codes - only trailer homes. Most other residents around here already have AAV vents. Is this a newer...
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