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Old 12-28-2009, 08:13 PM   #1
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Basement bathroom - Vent?


I am in the process of putting in a basement bedroom and bathroom. House is 10 years old and the bathroom was stubbed in. Do I need to run a seperate vent pipe for this, or is this what is considered a "wet-vented" setup? There is no existing vent to tie into in the floor above, so I would have to run a pipe through a wall above and into the attic and up through the roof; would be a huge pain. See pics for clarification.

There are two existing vents through the roof, one from the upstairs bathroom, and one out of the upstairs laundry.

House is on a holding tank if that matters at all.

Pic of the setup:
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Last edited by dogshooter; 12-28-2009 at 08:16 PM.
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Old 12-28-2009, 08:14 PM   #2
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Basement bathroom - Vent?


2" stub for shower
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Old 12-28-2009, 08:16 PM   #3
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Basement bathroom - Vent?


Notice the floor drain in bottom right corner of pic. This is the drain for the furnace as well. I'm guessing they are all tied together.
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Old 12-29-2009, 08:31 PM   #4
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Basement bathroom - Vent?


Where is the rest of the plumbing tree/waste lines for the other two areas in relation to this area?

Does the "floor drain" have an actual pipe down there or is that just gravel I see?

When you said the "house is on a holding tank", did you mean a septic tank? or an actual holding tank that needs pumping on a regular schedule as you have no septic field?
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Old 12-30-2009, 06:12 AM   #5
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Basement bathroom - Vent?


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Originally Posted by meboatermike View Post
Where is the rest of the plumbing tree/waste lines for the other two areas in relation to this area?
The rest of the plumbing tree is to the right of the floor drain in the pic, behind the furnace (about 4 feet from the floor drain)

Does the "floor drain" have an actual pipe down there or is that just gravel I see? There is a pipe down there, with a grate over the top, normal floor drain.

When you said the "house is on a holding tank", did you mean a septic tank? or an actual holding tank that needs pumping on a regular schedule as you have no septic field?
Its a holding tank....5500 gallons and needs to be pumped about every 3 months or so. The ground here wouldnt "perk" for a conventional septic, so a holding tank it is. Pretty common for our area).

Thanks for the help.
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Old 12-30-2009, 09:57 AM   #6
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Basement bathroom - Vent?


Is the sole plate for your stud wall pressure-treated lumber? If not, you might want to swap it out for pt.
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Old 12-30-2009, 12:16 PM   #7
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Basement bathroom - Vent?


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Is the sole plate for your stud wall pressure-treated lumber? If not, you might want to swap it out for pt.
Yes, definately treated.
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Old 12-30-2009, 02:03 PM   #8
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Basement bathroom - Vent?


I, too, have a similar looking setup, but assumed (in my 2 year-old-home) that it all ties in with the venting somewhere. Can anyone else shed light on this topic for us?
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Old 12-30-2009, 04:59 PM   #9
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Basement bathroom - Vent?


I'm no expert here, in fact I am right about the same stage you are. I have been doing quite a bit of reading and from what I can gather it appears, at least in my case, that all the stubs are tied together with no vent pipe anywhere in site. Since your install looks a lot like mine (my floor drain is also stubbed in concrete) you might have the same situation. I'm considering using a Studor vent (http://www.ipscorp.com/studor/minivent) for venting. The web site has lots of good info. I would suggest you take a look. It sure beats running vent pipe out of the roof!
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Old 12-30-2009, 06:53 PM   #10
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Basement bathroom - Vent?


I don't think that vent type is accepted in all localities. If this is a permitted installation, you might want to check on this before proceeding.
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Old 12-31-2009, 06:58 AM   #11
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Basement bathroom - Vent?


I checked on the Studor vent with the permit guy in the township I live in...it is acceptable here and sounds like the way to go.

Thanks for the help all...
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Old 12-31-2009, 04:04 PM   #12
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Basement bathroom - Vent?


Cool let us know how it all turns out
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Old 12-31-2009, 04:46 PM   #13
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Basement bathroom - Vent?


There is usually a vent coming off the ejector pit--can you tie into that??
If the pit is not vented you may have an awkward situation--not sure a pit can use a studor vent.

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