Moving Bathroom Rough-in - Plumbing - DIY Home Improvement | DIYChatroom


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Plumbing

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 12-04-2012, 11:04 PM   #1
Want to Learn
 
jonhayden's Avatar
 
Join Date: Jun 2012
Location: Erie, CO
Posts: 104
Rewards Points: 75
Default

Moving bathroom rough-in


Hi,

I'm going to finish my basement in Colorado and need to move the bathroom rough-in. To start with, the sump pump in the original builder plan doesn't even exist in the builder plans location so that space is free to use. However, because of where they put the water heater, the hallway would be too narrow to use with the existing rough-in. So I'm proposing the following...see image. My question is, will code allow me to do this? Are angles okay? extending the distance okay? pipe size okay? Also, there is no venting anywhere in the rough-in. I've looked up down, sideways, and there is nothing. I asked the builder and he said his plumber said it's okay to use an Air Admittance Valve so I'm hoping that's okay too.



Now, figuring out how to bust up the concrete is another topic all together

Thanks,
Jon

Advertisement

jonhayden is offline   Reply With Quote
Old 12-04-2012, 11:15 PM   #2
Want to Learn
 
jonhayden's Avatar
 
Join Date: Jun 2012
Location: Erie, CO
Posts: 104
Rewards Points: 75
Default

Moving bathroom rough-in


Not sure if this helps, but my town uses:

The International Plumbing Code, 2006 Edition

Advertisement

jonhayden is offline   Reply With Quote
Old 12-05-2012, 12:35 PM   #3
Special User
 
Join Date: Jul 2012
Location: Idaho, US
Posts: 607
Rewards Points: 612
Default

Moving bathroom rough-in


Assuming your local jurisdiction has no local amendments, from what I can tell AAVs do appear to be permitted under the 2006 IPC if there is at least one "real" vent through the roof somewhere else in the house.

However, AAVs have to be accessible for servicing and be able to "breathe" air freely, so you can't bury it in a wall. Under the sink would be the logical place for it. The AAV has to be within a certain distance of the traps it serves, so you may need to run the trap arms from the shower and toilet straight to the sink for the AAV, before turning to enter the main drain line. So instead of that branching Y configuration in your pic, you may need more of a T layout with the sink in the middle. I believe you'll also need a 3" AAV to match the largest drain in the system.
__________________
The above post is for entertainment purposes only. Its contents may, and probably will, lead to legal liability and damage or loss of property, life, or limb. Use at your own risk.
tylernt is offline   Reply With Quote
Old 12-05-2012, 03:16 PM   #4
Want to Learn
 
jonhayden's Avatar
 
Join Date: Jun 2012
Location: Erie, CO
Posts: 104
Rewards Points: 75
Default

Moving bathroom rough-in


Thanks for your reply tylernt! My home has 2 vents that I can see so I should be okay there. And I was definitely planning on making the AAV accessible. I was even thinking about purchasing something like this recess box:



When you mention a T layout, do you mean something like this?



Thanks again,
Jon
jonhayden is offline   Reply With Quote
Old 12-05-2012, 03:26 PM   #5
Special User
 
Join Date: Jul 2012
Location: Idaho, US
Posts: 607
Rewards Points: 612
Default

Moving bathroom rough-in


Quote:
Originally Posted by jonhayden View Post
I was even thinking about purchasing something like this recess box:
Say, that's nice, gives you more flexibility on where to put it.

Quote:
When you mention a T layout, do you mean something like this?
Where will you put the AAV?
__________________
The above post is for entertainment purposes only. Its contents may, and probably will, lead to legal liability and damage or loss of property, life, or limb. Use at your own risk.
tylernt is offline   Reply With Quote
Old 12-05-2012, 03:29 PM   #6
Want to Learn
 
jonhayden's Avatar
 
Join Date: Jun 2012
Location: Erie, CO
Posts: 104
Rewards Points: 75
Default

Moving bathroom rough-in


Quote:
Originally Posted by tylernt View Post
Where will you put the AAV?
I was thinking in the wall that's between the shower and sink.
jonhayden is offline   Reply With Quote
Old 12-05-2012, 03:38 PM   #7
Member
 
Join Date: Oct 2009
Location: Minneapolis, MN
Posts: 511
Rewards Points: 522
Default

Moving bathroom rough-in


You say your home has two vents... are any of these accessible from the basement? I believe, if at all possible, you should try and vent your basement bathroom out through the roof. The AAV is just a last resort when it is not possible to properly vent.

B
Beepster is offline   Reply With Quote
Old 12-05-2012, 03:48 PM   #8
Want to Learn
 
jonhayden's Avatar
 
Join Date: Jun 2012
Location: Erie, CO
Posts: 104
Rewards Points: 75
Default

Moving bathroom rough-in


Quote:
Originally Posted by Beepster View Post
You say your home has two vents... are any of these accessible from the basement? I believe, if at all possible, you should try and vent your basement bathroom out through the roof. The AAV is just a last resort when it is not possible to properly vent.

B
They're on the complete opposite side of the basement, which is why I was going the AAV route. Thanks
jonhayden is offline   Reply With Quote
Old 12-05-2012, 04:07 PM   #9
Special User
 
Join Date: Jul 2012
Location: Idaho, US
Posts: 607
Rewards Points: 612
Default

Moving bathroom rough-in


Quote:
Originally Posted by jonhayden View Post
I was thinking in the wall that's between the shower and sink.
Based on this thread:

Distance from toilet to vent.

it looks like that AAV location and your T layout will work. Of course use sweep fittings, not 90 corners.

Shower is 2 DFU, lav is 1 DFU, 2" pipe supports 6 DFU on a horizontal branch, so you're good size-wise.
__________________
The above post is for entertainment purposes only. Its contents may, and probably will, lead to legal liability and damage or loss of property, life, or limb. Use at your own risk.
tylernt is offline   Reply With Quote
The Following User Says Thank You to tylernt For This Useful Post:
jonhayden (12-05-2012)
Old 12-06-2012, 07:05 PM   #10
Want to Learn
 
jonhayden's Avatar
 
Join Date: Jun 2012
Location: Erie, CO
Posts: 104
Rewards Points: 75
Default

Moving bathroom rough-in


Just to confirm. Does this look right? And I'm curious about the type of pipe connection to use between the 3" and 2" pipes. By sweep fitting, do you mean a Y? And is a T okay where the AAV pipe meets the sink/shower pipe? Thanks

jonhayden is offline   Reply With Quote
Old 12-06-2012, 08:08 PM   #11
Special User
 
Join Date: Jul 2012
Location: Idaho, US
Posts: 607
Rewards Points: 612
Default

Moving bathroom rough-in


Yeah, the 45 Y fittings are the least likely to clog.

As for the 2" meeting the 3", you may be able to find a 3x3x2 Y like the one shown below, but it's just as effective to come off a 3x3x3 Y with a 3-2 reducer coupling, so don't drive all over town looking for the 3x3x2.

As far as I know, vents can use hard 90 tees though.
Attached Images
 
__________________
The above post is for entertainment purposes only. Its contents may, and probably will, lead to legal liability and damage or loss of property, life, or limb. Use at your own risk.
tylernt is offline   Reply With Quote
Old 12-06-2012, 08:27 PM   #12
Want to Learn
 
jonhayden's Avatar
 
Join Date: Jun 2012
Location: Erie, CO
Posts: 104
Rewards Points: 75
Default

Moving bathroom rough-in


Thanks for your help. Much appreciated.

Jon
jonhayden is offline   Reply With Quote
Old 12-06-2012, 09:00 PM   #13
Want to Learn
 
jonhayden's Avatar
 
Join Date: Jun 2012
Location: Erie, CO
Posts: 104
Rewards Points: 75
Default

Moving bathroom rough-in


Final solution. Need to see if a cleanout is required, but I think this works good for me.
jonhayden is offline   Reply With Quote
Old 12-06-2012, 09:20 PM   #14
Special User
 
Join Date: Jul 2012
Location: Idaho, US
Posts: 607
Rewards Points: 612
Default

Moving bathroom rough-in


I found this that mentions clean outs:

www.finehomebuilding.com/PDF/Free/021126070.pdf

Advertisement

__________________
The above post is for entertainment purposes only. Its contents may, and probably will, lead to legal liability and damage or loss of property, life, or limb. Use at your own risk.
tylernt is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
bathroom circuit size..... CharlieR Electrical 14 03-25-2012 03:52 PM
3 piece bathroom rough in newfieblue Plumbing 9 03-08-2012 05:35 AM
Moving a bathroom sink lisastewart Kitchen & Bath Remodeling 1 01-18-2012 11:51 AM
1886 Eastlake - add upstairs bathroom or expand downstairs bath?? TOTALN00B Plumbing 1 05-14-2011 10:54 PM
How to select appropriate Bathroom Lighting crescentharbor1 Kitchen & Bath Remodeling 1 02-28-2011 10:47 PM




Top of Page | View New Posts