Moving Toilet 12 Feet, Unsure About Venting - 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 05-08-2011, 01:29 PM   #1
Newbie
 
Join Date: May 2011
Posts: 3
Rewards Points: 10
Default

Moving toilet 12 feet, unsure about venting


I need to move a toilet on the second floor of a two floor house. I will be moving it about 12 feet away from where it is right now and I expect that means moving it 12 feet further from the main stack that has venting.
Everything I read says I will need to maintain a 1/4 inch drop for every foot of run of the pipe. I think I can do do this. However, I am not sure about the venting that I will need. Will the current venting on the main stack still work or do I need to have a vent closer to the new location of the toilet. If so, where exactly does the vent tie in to the toilet pipe? Any and all advice would be much appreciated.

Advertisement

sputnik62 is offline   Reply With Quote
Old 05-08-2011, 01:42 PM   #2
BIGRED
 
Join Date: Apr 2009
Location: Northern Illinois
Posts: 486
Rewards Points: 250
Default

Moving toilet 12 feet, unsure about venting


Toilets require a 3-4" closet bend/drain. As such they also require the same size vent -3-4"-. The placement of the tiolet must be within 5' of the vent line for proper operation. At 12 feet you should have to run second vent line up the wall behind or to the side of where your toilet will be set. That second vent can either be tied into the existing vent in the attic or it can be run straight up through the roof.

Advertisement

Grampa Bud is offline   Reply With Quote
The Following User Says Thank You to Grampa Bud For This Useful Post:
sputnik62 (05-10-2011)
Old 05-08-2011, 02:17 PM   #3
Member
 
Join Date: Oct 2009
Posts: 853
Rewards Points: 626
Default

Moving toilet 12 feet, unsure about venting


Quote:
Originally Posted by Grampa Bud View Post
Toilets require a 3-4" closet bend/drain. As such they also require the same size vent -3-4"-. The placement of the toilet must be within 5' of the vent line for proper operation. At 12 feet you should have to run second vent line up the wall behind or to the side of where your toilet will be set. That second vent can either be tied into the existing vent in the attic or it can be run straight up through the roof.
I believe that local codes can vary. My house has a 2"IPS vent handling two WC's and two showers. On several commercial jobs, we have used 2" vents for toilets, and have also ran an appreciable horizontal distance because we were constrained by a PT deck and an existing mechanical shaft.

My latest DWV fixture list gives a 2" vent as being able to handle 6 fixture units horizontally and vertically for WC's, 8 and 16 FU when there are no toilets.

Sight unseen, I would believe that your proposed relocation would be feasible in my jurisdiction
Anti-wingnut is offline   Reply With Quote
The Following User Says Thank You to Anti-wingnut For This Useful Post:
sputnik62 (05-10-2011)
Old 05-08-2011, 08:13 PM   #4
BIGRED
 
Join Date: Apr 2009
Location: Northern Illinois
Posts: 486
Rewards Points: 250
Default

Moving toilet 12 feet, unsure about venting


Maybe in your "jurisdiction", but your own words say that 2" drains are perfectly ok for fixture units (drains for sinks & showers and faucets) as long as there are NO toilets involved. I sincerely doubt any approved commercial or industrial toilet -or WC- instalation can be found using only a 2" vent on a 4" discharge line.
Grampa Bud is offline   Reply With Quote
Old 05-08-2011, 09:05 PM   #5
DIY staff

 
Join Date: Sep 2009
Location: Kane county,Illinois
Posts: 22,301
Rewards Points: 3,242
Default

Moving toilet 12 feet, unsure about venting


2" vent is fine for a toilet where I work----
__________________
New members: Adding your location to your profile helps in many ways.--M--
oh'mike is online now   Reply With Quote
The Following User Says Thank You to oh'mike For This Useful Post:
sputnik62 (05-10-2011)
Old 05-08-2011, 11:27 PM   #6
Member
 
Join Date: Oct 2009
Posts: 853
Rewards Points: 626
Default

Moving toilet 12 feet, unsure about venting


Quote:
Originally Posted by Grampa Bud View Post
Maybe in your "jurisdiction", but your own words say that 2" drains are perfectly ok for fixture units (drains for sinks & showers and faucets) as long as there are NO toilets involved. I sincerely doubt any approved commercial or industrial toilet -or WC- instalation can be found using only a 2" vent on a 4" discharge line.
I think you would be wrong Gramps. Could it be that your experience is in Illinois, which is well known for being a little odd and strict? Lighten up, you're going give yourself a coronary

Quote:
Originally Posted by oh'mike View Post
2" vent is fine for a toilet where I work----
Maybe not in 1942
Anti-wingnut is offline   Reply With Quote
Old 05-09-2011, 09:38 AM   #7
BIGRED
 
Join Date: Apr 2009
Location: Northern Illinois
Posts: 486
Rewards Points: 250
Default

Moving toilet 12 feet, unsure about venting


That's OK Wingnut, I was only throwing in My two cents worth along with everyone else. Most people wind up DIYing it the way they feel is good for themselves anyway. I don't try to start my tractor with 20 gauge battery cables either, though it's possible.
Grampa Bud is offline   Reply With Quote
Old 05-09-2011, 10:27 AM   #8
Member
 
Join Date: Oct 2009
Posts: 853
Rewards Points: 626
Default

Moving toilet 12 feet, unsure about venting


Quote:
Originally Posted by Grampa Bud View Post
That's OK Wingnut, I was only throwing in My two cents worth along with everyone else. Most people wind up DIYing it the way they feel is good for themselves anyway. I don't try to start my tractor with 20 gauge battery cables either, though it's possible.


I don't really understand your analogy, and it certainly doesn't seem applicable here. Jump starting with 20ga wires will just melt the wires.

One is allowed by code to vent a toilet with a 2" ips vent in my area, if that bothers or offends you, you should take it up with the National Code Committee. If properly installed, and not subject to the vagarities of extreme weather, such an application is fine and safe.

After more than 20 years of commercial and industrial supervisory experience throughout the intermountain area and west coast, I realize that codes and code interpretations can vary greatly. I would never be so close minded to think that "my code" is the only code.

You should also be aware that it is commonly thought that Illinois code committees are in the pocket of the labor unions, and code interpretations are as often as not driven by the need to inflate labor as they are by safety. Look at the residential use of electrical conduit versus the rest of the nation
Anti-wingnut is offline   Reply With Quote
Old 05-09-2011, 10:31 AM   #9
Member
 
Join Date: Jan 2009
Location: WV
Posts: 3,016
Rewards Points: 2,212
Default

Moving toilet 12 feet, unsure about venting


Quote:
Originally Posted by Grampa Bud View Post
Toilets require a 3-4" closet bend/drain. As such they also require the same size vent -3-4"-. The placement of the tiolet must be within 5' of the vent line for proper operation. At 12 feet you should have to run second vent line up the wall behind or to the side of where your toilet will be set. That second vent can either be tied into the existing vent in the attic or it can be run straight up through the roof.
Not where I live. The applicable code (IRC 2003) handles venting quite differently from the UPC. There is no requirement at all for maximum distance from the main stack, and toilets don't require a separate vent. There is also no requirement that individual vents go up through the roof. All of mine are tied together to a single line that connects to the main stack. Most local builders don't do it this way (more expensive maybe?) but ours is a log house we built ourselves and we didn't want a bunch of white plastic pipes sticking out of our standing seam roof.
md2lgyk is offline   Reply With Quote
Old 05-10-2011, 08:26 AM   #10
Plumb or Die!
 
Join Date: Oct 2010
Location: BC, Canada
Posts: 321
Rewards Points: 250
Default

Moving toilet 12 feet, unsure about venting


If you're moving the toilet 12', what about the rest of the bathroom? A 2" dry vent is more than enough for a WC, but if you are moving the tub and sink, we should be looking at a way to do some wet venting.
plumber666 is offline   Reply With Quote
The Following User Says Thank You to plumber666 For This Useful Post:
sputnik62 (05-10-2011)
Old 05-10-2011, 04:29 PM   #11
Newbie
 
Join Date: May 2011
Posts: 3
Rewards Points: 10
Default

Moving toilet 12 feet, unsure about venting


Quote:
Originally Posted by plumber666 View Post
If you're moving the toilet 12', what about the rest of the bathroom? A 2" dry vent is more than enough for a WC, but if you are moving the tub and sink, we should be looking at a way to do some wet venting.
Toilet is the only thing that is moved (to the other side of the bathroom). The rest of the fixtures stay put.

I am not completely sure I understand what you mean by " a 2" dry vent" (sorry I am a newbie). In its current location the toilet is on a 4" waste line (I assume) right next to the wall that contains the stack that vents through the roof. What I am thinking of doing is just extending the 4" waste line by about 12 feet along the joist bringing the toilet to the other side of the room. I am hoping I will have enough room in the joist to create a 3" drop (1/4" per foot). I think I can do that. What I was concerned about was the distance to the main stack that has wet vent being 12 feet away.
If I need to put a separate vent for the toilet, I think I can build a false wall and hide the vent behind it. Since I am on the second floor going to the attic is not a big deal and I can probably tie in to existing vent in the attic. If I do need to do that, I wanted to understand how to tie the 2" vent pipe (I am assuming that the vent can be 2" inch and not 4" like the waste pipe) to the 4" waste pipe. Questions I have are:
- where do I tie in to the waste pipe? Most convenient place for me is right next to the toilet.
- should I use a Y connector with 4" main and 2" branch or do I need to use a T connector?
- when tying in to existing vents in the attic, do I have to maintain some sort of a slope on the vent pipe?
sputnik62 is offline   Reply With Quote
Old 05-10-2011, 04:32 PM   #12
Newbie
 
Join Date: May 2011
Posts: 3
Rewards Points: 10
Default

Moving toilet 12 feet, unsure about venting


Thanks everyone for great and timely suggestions.

One thing I got from everyone here is that it all depends on the local code. I am in Richmond Hill, Ontario Canada. Anyone has suggestions on what the best way to figure out what my local code for venting is? I am a DYI but I don't want to hack it; want to do it to code.

Advertisement

sputnik62 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
Basement Toilet Venting Question scottgibson Plumbing 17 02-21-2010 11:34 AM
moving basement toilet cibula11 Plumbing 10 10-20-2007 02:22 PM
Moving Toilet cibula11 Plumbing 5 02-19-2007 09:47 PM
Moving toilet kevnew Plumbing 1 03-11-2006 12:52 AM
moving toilet farrington135 Plumbing 5 11-19-2005 05:29 PM




Top of Page | View New Posts