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Old 01-16-2012, 08:23 PM   #1
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Need Advice: Rough of basement half bath


So this is where the framing stops and I need to take on what I've avoided... Taking on the rough in of the half bath.

I've added some photos below to provide a point of reference as to what I'm working with.

From my reading, I understand that I can tie into the stack pictured for the drain for the toilet and sink. The installation of the drain line for the sink and toilet isn't necessarily what has me confused but rather it's the vent...

I don't have any of of the measurements for the area but if it helps I can get them.

Behind my framed wall I have a utility sink and a washer/dryer. I'm unsure as to whether or not I can tie into this vent.

Any suggestions or input is greatly appreciated.









Last edited by swt99svt; 01-16-2012 at 08:26 PM.
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Old 01-16-2012, 08:40 PM   #2
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Need Advice: Rough of basement half bath


No problem in taping in to that vent.

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Old 01-16-2012, 10:19 PM   #3
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Need Advice: Rough of basement half bath


I believe you can only tie into that vent at a point above where no other fixtures are draining.
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Old 01-17-2012, 10:01 AM   #4
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Need Advice: Rough of basement half bath


Looks like 2", should be ok.

Do you have a sketch of the proposed bathroom with the drainage config so you can determine the best location to tie into the vent?

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Old 01-17-2012, 10:05 AM   #5
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Need Advice: Rough of basement half bath


Yes I do at home and I can post it tonight...

Also, they're 1 1/2" and not 2"... Not sure how that changes things.

My other thoughts are to go with a Saniflo upflush toilet in order to not have to mess with the concrete.

In this case, could I tied the vent and drain into the plumbing at the sink/washer for the vent and drain? I assume that if I can't do it for the drain I would be good to tie into the drain that leads to the stack which is pictured above?
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Old 01-17-2012, 01:25 PM   #6
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Need Advice: Rough of basement half bath


Quote:
Originally Posted by swt99svt View Post
Yes I do at home and I can post it tonight...

Also, they're 1 1/2" and not 2"... Not sure how that changes things.

My other thoughts are to go with a Saniflo upflush toilet in order to not have to mess with the concrete.

In this case, could I tied the vent and drain into the plumbing at the sink/washer for the vent and drain? I assume that if I can't do it for the drain I would be good to tie into the drain that leads to the stack which is pictured above?

The sound of that Saniflo makes me cringe. The only time I would use one of them is if the depth of the sanitary lateral didn't allow for below grade drainage.

As far as what to tie into with those things, I'll let a plumber insert his 2 cents.
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Old 01-17-2012, 01:43 PM   #7
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Need Advice: Rough of basement half bath


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Originally Posted by psilva8 View Post
The sound of that Saniflo makes me cringe. The only time I would use one of them is if the depth of the sanitary lateral didn't allow for below grade drainage.

As far as what to tie into with those things, I'll let a plumber insert his 2 cents.
After talking it over with a friend who has a Saniflo looks like it's back to old faithful.

I wanted to add that while it is a basement, the majority of it is above grade and therefore could dry vent to the outside...????


Last edited by swt99svt; 01-17-2012 at 01:46 PM.
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