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  #1  
Old 5/29/12, 8:05 PM
Minh Nguyen Minh Nguyen is offline
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Default Vent Stack

Code says:

Vent stack connection (lower end):
  • in residential buildings of 4 and more storeys, other buildings of 2 and more storeys:
"...at or below the lowest horizontal sanitary drainage pipe connected to the waste or soil stack"

Why ? What happens if vent stack is connected above the horizontal drainage pipe ?

Thanks.
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Old 5/30/12, 12:00 AM
Cameron Anderson's Avatar
Cameron Anderson Cameron Anderson is offline
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Default Re: Vent Stack

This may help... It's all about a complete circle of air circulation for each floor to prevent improper drainage and siphoning.
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Cameron Anderson
Integrity Home Inspection
Truth. In Real Estate.
Since 2004
Bachelor of Architecture, U of I, Urbana IL
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www.aaintegrityhomeinspection.com

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