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Old 05-15-2016, 10:24 PM   #1
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wet vent vs dry vent

a "plumber" said I have to put in a dry vent to move a sewer line. Not sure what he means,
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Old 05-15-2016, 11:14 PM   #2
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Re: wet vent vs dry vent

Moved to plumbing board-

A wet vent is when a drain line serves as a vent for one or more fixtures. This can be either a vertical vent or a horizontal vent. Such as a bathroom lav that drains into the toilet vent (shares the same pipe)
Every fixture or trap requires a vent- wet or dry.
In your case, it sounds like you are moving a line that shares a vent with another fixture- so you need to add another vent to insure the altered work or the existing work is properly vented
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