Automatic Venting Device

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Old 01-02-07, 02:18 PM
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Automatic Venting Device

I am planning the plumbing in my basement bathroom project and thinking about the sink.

There is a shower and toilet that drain into the floor and there is no sink. I plan to tie into the main stack to drain the sink, but there is no vent pipe to be seen. I have been told to use an automatic venting device. Seems to make sense to me, but I wanted to make sure there isn't a good reason not to use one. I have checked code and they seem to be OK.

So, does anybpdy know of a good reason not to use an automatic venting device?
 
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Old 01-02-07, 07:03 PM
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Dan, there should be no reason you shouldn't be able to use the AAV if your codes allow it. All you are doing, as the name implies is Admitting Air into the pipe, similarly to a vent pipe. It will close off automatically to prevent gas back up.
 
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Old 01-02-07, 08:40 PM
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Great - It just seemed too good to be true
 
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