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Plumbing Codes - Residential International Residential Code 2000 or 2003

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  #1   IP: 199.36.20.5
Old April 18th, 2005, 05:54 AM
macheske macheske is offline
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Join Date: Apr 2005
Posts: 21
Default Fixture units and vent sizing

Does anyone have the table for fixture units and the allowed # of fixture units per size of vent? I need to vent the following; 2 toilets, 2 tubs, 3 sinks. I have a 1 1/2" vent and thinking I need to run another 2" vent. I would break it up as: vent #1 (1 1/2) 1 toilet, 1 tub, 1 sink, vent #2 (2") 1 toilet, 1 tub, 2 sinks. vents below the sinks would be wet from sinks.
Thanks,
Rick
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  #2   IP: 64.160.53.186
Old April 28th, 2005, 04:19 AM
flickit flickit is offline
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Default Check out this...

Quote:
Originally Posted by macheske
Does anyone have the table for fixture units and the allowed # of fixture units per size of vent? I need to vent the following; 2 toilets, 2 tubs, 3 sinks. I have a 1 1/2" vent and thinking I need to run another 2" vent. I would break it up as: vent #1 (1 1/2) 1 toilet, 1 tub, 1 sink, vent #2 (2") 1 toilet, 1 tub, 2 sinks. vents below the sinks would be wet from sinks.
Thanks,
Rick
...site http://www.naffainc.com/x/CB2/index.html under the M/P/E tab for plumbing venting and drain tables.
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  #3   IP: 67.78.113.226
Old April 28th, 2005, 11:46 AM
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rephrase that last comment regarding the sinks...don't quite understand.

if planning to split up the venting as you've mentioned, both lines would have to be a min. 2" (toilets require a 2" vent.) do you have sketch or something showing the layout(s)?
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