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Old 03-07-2010, 08:56 PM   #1
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where to put main vent


i am adding 1.5 bath and a kitchen to 1 st floor of a 3plex. there is no existing venting.

the 2 toilets are about 7' away from the 4" main stack. and other drains are kinda surrounding the toilets.

i dont know if i should:

1. put the main vent ringt on top of main stack-- then i need to run auxilary venting for every drain;

2, or, put the main vent right where the toilet drains are -- then i only need to run a couple of aux venting, though the main vent is not on top of main stack(does that matter?)

what would you suggest?

thanks

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Old 03-08-2010, 07:22 PM   #2
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where to put main vent


anyone can help pls?

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Old 03-08-2010, 08:07 PM   #3
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where to put main vent


its depends on the layout and framing of your rooms
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Old 03-09-2010, 07:32 AM   #4
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where to put main vent


right now, frame is up w/o drywall, so either way is possible.

There is no difference on the plumbing side?
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