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Old 06-19-2015, 07:43 AM   #11
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All the room in the world and you can't throw a 2" vent between the closet bend and the tub/lav tie in? I have to revent everything in illinois. But I think we're a little lax on the joist drilling.
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Old 06-19-2015, 10:41 AM   #12
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He must have failed you for not venting the lav. The wc and tub are a wet vent, but because the lav turns up vertical it can't be part of the horizontal wet vent. So you need to run a vent off that too.
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Old 06-19-2015, 10:43 AM   #13
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No issue in Illinois (below Chicago) The vent may be considered a wet vent with the Lav washing it, as long as the complete circuit is 2".

Forget about the tub, unless the horizontal wet portion and the vertical dry portion were 2", then you could count it. A slight rise at least 22 1/2 would be better, those long horizontal wet vents have issues with air movement.
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Old 06-19-2015, 12:47 PM   #14
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It's legal here in MI as long as the 1 1/2" vent is connected with a wye instead of a tee and doesn't have any offsets greater than 45 degrees before it gets a minimum of 6" above the flood level rim of the highest fixture on that group.
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Old 06-20-2015, 08:47 AM   #15
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Quote:
Originally Posted by GAN
No issue in Illinois (below Chicago) The vent may be considered a wet vent with the Lav washing it, as long as the complete circuit is 2". Forget about the tub, unless the horizontal wet portion and the vertical dry portion were 2", then you could count it. A slight rise at least 22 1/2 would be better, those long horizontal wet vents have issues with air movement.
Going to have to go back to wet venting school to learn how to .....no way in h e double hockey sticks I would ever wet vent anything in Illinois.
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Old 06-20-2015, 12:20 PM   #16
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In BC it would be ok. There are better ways to do it tho.

The way Tommy said is the way I would do it.
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Old 06-20-2015, 01:18 PM   #17
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Wet venting is a plumbers beat friend
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Old 06-20-2015, 06:22 PM   #18
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Quote:
Originally Posted by AKdaplumba View Post
In BC it would be ok. There are better ways to do it tho.

The way Tommy said is the way I would do it.
That would fail up here, WC has to be the farthest downstream fixture. If you increase the tub drain downstream of the vent to 2" it would pass, as long as the lav is individually vented. To use the lav drain to wet vent the whole bathroom group the tub drain would need to tie into the lav before tying into the 3", and the wet vent portion still needs to be increased to 2".
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Old 06-20-2015, 08:08 PM   #19
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looks like a san tee on its back for a vent at the tub
my inspectors would fail it for that, they want wyes, no san tees on there backs for anything.
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Old 06-22-2015, 09:38 AM   #20
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Is this legal ?-imageuploadedbyplumbing-zone1434980295.894728.jpgnow it's legal.
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