The vent size is determined by the size of the largest drain pipe served by the

The vent size is determined by the size of the

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The vent size is determined by the size of the largest drain pipe served by the vent.
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© PMA of Georgia 2010Common VentVTRVLTACW2”1 ½”1 ½”2”3”This portion for the vent system is considered a common vent. The vent size is determined by the size of the largest drain pipe served by the vent.The portion of the pipe which serves as the drain for the upper fixture and the vent for the lower fixture is sized as a wet vent.The branch drain is three inch based on section 406.3 as amended in 2007
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© PMA of Georgia 2010Vent SizingVTRVTRSHSHLAVLAVLAVKSWCWCWCLTACW1 ½”3”2”1 ½”1 ¼”1 ½”3”3”1 ½”3”2”1 ½”3”1 ½”1 ½”1 ½”1 ¼”
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© PMA of Georgia 2010The code gives us specific application for various ways to vent the plumbing system in a building. Some of these we may be unfamiliar with. However all the methods in the IPC 2006 will allow the plumbing in a building to adequately breath. This is important, because this breathing is what protects the seal of the trap. Protecting the trap seal is important in helping protect occupants of a building from hazards associated with the gasses present in the plumbing system.Becoming familiar with types of vents and proper sizing may help us save money, maybe not. Proper sizing and knowing the options available will provide opportunity for solving problematic situations we face on a regular basis.Conclusion
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