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Old 04-04-2013, 09:13 AM   #1
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Can a shower share a vent w/ the sink?


I have a half bath with a similar setup to this (highlighted in red).

I'm planning on adding a shower while it's gutted (highlighted in blue) - ignore the fact that it's a tub - only pic I could find.

Can the shower share the vent with the sink in this case or does it need to have it's own dedicated vent? The shower will be located across from the sink instead of next to it like in the pic.

The shower drain and the sink drain will be roughly 5' apart.

Thanks
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Old 04-04-2013, 10:15 AM   #2
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Can a shower share a vent w/ the sink?


Yes they can share a vent, however the horizontal shower and lav line need to be 2". The vertical lav drain(wet vent) should be 2" as well. The dry vent may be 1.5"-- based on UPC

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Old 04-04-2013, 10:39 AM   #3
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Can a shower share a vent w/ the sink?


Good info - thanks!

I wasn't sure if the requirement changed from a tub to a shower since the tub lets air in through the overflow.
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