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Old 02-04-2013, 09:53 PM   #1
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Changing Bathroom Rough-in


Hi,

I need to make some slight changes to the existing basement rough-in. The hallway outside the bathroom is to narrow to support the bathtub that the finished floor plan shows. So I'm going to make it a shower instead in order to keep a wider hallway. And I also want to move the toilet since the sump pump doesn't exist as seen in the original layout. In the image below, the piping on the left is how I think it's currently laid out from some pictures I took before the concrete was poured. So I want to break up the concete and move it a little bit. Is there anything illegal about the additional piping and turns it takes (as seen in red)?

Thanks,
Jon

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Old 02-05-2013, 07:04 AM   #2
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Changing Bathroom Rough-in


Please add your vents to the drawing-----
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Old 02-05-2013, 07:47 AM   #3
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Quote:
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Please add your vents to the drawing-----
I'm using an AAV (allowed by code here in Colorado). It will come off the sink. They actually have one sitting on the sink rough-in pipe coming out of the ground right now.

Here's a picture:


Last edited by jonhayden; 02-05-2013 at 11:40 AM.
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Old 02-05-2013, 09:29 PM   #4
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Changing Bathroom Rough-in


Aside from the AAV, your "new set up" would pass codes up here (assuming pipe sizes are correct).
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Old 02-06-2013, 09:29 AM   #5
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Aside from the AAV, your "new set up" would pass codes up here (assuming pipe sizes are correct).
Thanks for the input. I think they're 3" and 2 1/2" pipes that exist right now. I'll just continue the same size that is being used since they already passed the initial inspection.

Thanks again,

Jon
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Old 02-06-2013, 02:17 PM   #6
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Changing Bathroom Rough-in


you would need a vent on the line to the toilet.
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Old 02-06-2013, 02:57 PM   #7
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you would need a vent on the line to the toilet.
Can't a single large AAV support all the units?
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Old 02-06-2013, 02:59 PM   #8
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Changing Bathroom Rough-in


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Can't a single large AAV support all the units?
I've always been told...."You can never have too much vent"....

You should see the vents I have on my house....
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Old 02-07-2013, 09:36 AM   #9
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Changing Bathroom Rough-in


So if I want to add a vent to the toilet, where do I put it? Do I just extend the pipe past the toilet by using a T connection or something like that? A combo tee/wye type connection?

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Old 02-07-2013, 06:56 PM   #10
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Changing Bathroom Rough-in


That would work--2" vent is required--within 5 feet of the fixture---the closer the better for a toilet.
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Old 02-08-2013, 10:36 AM   #11
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That would work--2" vent is required--within 5 feet of the fixture---the closer the better for a toilet.
Thanks! I was planning on a 3" vent for the toilet since the pipe is 3".
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Old 02-08-2013, 04:31 PM   #12
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Quote:
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That would work--2" vent is required--within 5 feet of the fixture---the closer the better for a toilet.
Why did you tell him that you can vent the water closet like? Don't you have to bring the vent off before the fixture. So you will put a wye on a 45 degree angle then the 90 for the water closet? what he said come a cross and but a tee and bring the vent off the back where can you do that.
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Old 02-09-2013, 08:14 AM   #13
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Why did you tell him that you can vent the water closet like? Don't you have to bring the vent off before the fixture. So you will put a wye on a 45 degree angle then the 90 for the water closet? what he said come a cross and but a tee and bring the vent off the back where can you do that.
You're saying I CAN'T have a vent after the toilet?

Can someone else chime in since I'm getting conflicting answers now?

Thanks!
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Old 02-09-2013, 10:47 AM   #14
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Changing Bathroom Rough-in


vents should come off above the center line of the trap arm it's serving.
If it was me- I'd vent it at the wall as it passes under it near the door
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Old 02-09-2013, 10:54 AM   #15
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Changing Bathroom Rough-in


depending on what code some codes say a toilet does not need venting
as long as sink is a 2 inch up to where water goes into pipe it would pass where i live
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