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Old 04-21-2012, 07:09 PM   #1
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Old vent under New Addition


I just bought a house that has an addition over an old cast vent that is broken almost at ground level and leaks when we flush or use any drain. Is it possible to dig it out and cap it or do I need to route it to the existing vent stack?

newdiyowner in Indiana

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Old 04-21-2012, 08:54 PM   #2
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Old vent under New Addition


You did post a picture so it's hard to say.
A vent would run up though a wall and out thought the roof in most cases, so there's no way to know what it does with out some more info.
Is it the pipe still sticking out or is it the fitting you can see?
What's it connected to?

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Old 04-22-2012, 08:23 AM   #3
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I just bought a house that has an addition over an old cast vent that is broken almost at ground level and leaks when we flush or use any drain. Is it possible to dig it out and cap it or do I need to route it to the existing vent stack?

newdiyowner in Indiana
a picture is worth a 1000 words..or in your case an answer to your question...
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Old 04-22-2012, 11:53 AM   #4
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Old vent under New Addition


Here's a picture. It is where the outside wall was before the addition.
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Old 04-22-2012, 11:56 AM   #5
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Old vent under New Addition


No picture posted.
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Old 04-22-2012, 11:59 AM   #6
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Old vent under New Addition


Let's try this again.
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Old vent under New Addition-old-vent.jpg  
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Old 04-22-2012, 12:58 PM   #7
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Old vent under New Addition


Wow that is a mess. Is there a fixture directly above that, or anywhere nearby?

If not, chances are it used to be a cleanout.

And with the condition that the hub is in, you're more than likely going to have to replace the entire fitting.
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Old 04-22-2012, 01:09 PM   #8
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Old vent under New Addition


There aren't any fixtures above it. It is under a newer addition to the house. Noticed when we were cleaning out the basement, that when anything else was used such as the toilet, the water level in it would rise and leak into the new crawl space.
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Old 04-22-2012, 01:15 PM   #9
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Old vent under New Addition


Hard to say with out being there but you may be able to cut it off with a carbide sawsall blade and add a rubber cap like this.
http://images.search.yahoo.com/image...mb=cpCLpHoH11V
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Old 04-22-2012, 01:21 PM   #10
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Thanks, I'll give it a try and see what happens.
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Old 04-22-2012, 04:18 PM   #11
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Old vent under New Addition


my guess if waste and water is coming out when used ..you have a clog...
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Old 04-22-2012, 06:04 PM   #12
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Old vent under New Addition


No waste, it's just water that's been in the pipe for who knows how long.
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Old 04-22-2012, 08:44 PM   #13
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Old vent under New Addition


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No waste, it's just water that's been in the pipe for who knows how long.
Understood, but the water should flow freely down the pipe. If it's coming up under the addition, you have a problem sir.
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Old 04-22-2012, 08:49 PM   #14
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yes you have a clog

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