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

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

Reply
 
Thread Tools Search this Thread Display Modes
Old 11-14-2012, 10:44 AM   #1
Member
 
Join Date: Jul 2012
Location: NJ
Posts: 377
Rewards Points: 0
Share |
Default

Fixing sewer gas smell from 3" copper vent pipe


I have these 3" copper pipes in the attic that is used to vent toilets, sinks, etc.

Based on what I saw, whoever sweated these joints did not use enough solder as I can clearly see a gap between the pipe and fittings.

In addition, some of these pipes are rather long (3" pipe that is over 9 feet long) so I inadvertently moved them slightly as I was jostling insulation around.

All I know is that I can distinctively smell sewer gas odor directly beneath this pipe (my master bedroom).

Normally, I would just heat the joints, take them apart, clean, re-assemble and re-sweat these joints but due to rather limited space, I would like to explore other repair possibilities.

Option 1. Heat the fitting and apply more solder. not sure if this will seal out gas as the surface would not be clean. Maybe apply flux on top?

Option 2. Since this is just a low pressure vent pipe, can I simply use some plumber's putty to seal out the gas? or even some type of "clay-ish" welding products?

Thanks

allthumbsdiy is offline   Reply With Quote
Old 11-14-2012, 01:51 PM   #2
DIY staff
 
Join Date: Sep 2009
Location: Kane county,Illinois
Posts: 21,668
Rewards Points: 100
Default

Fixing sewer gas smell from 3" copper vent pipe


JB weld----I never thought I'd say that publicly ---

If the fitting is completely loose---open--remove the fitting or cut out the fitting and replace the fitting with PVC and rubber Fernco fittings---

Resoldering an old fitting without taking it apart and sanding the surfaces will fail---you might start a fire---skip the soldering----

__________________
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:
allthumbsdiy (11-14-2012)
Old 11-14-2012, 04:58 PM   #3
Member
 
Join Date: Jan 2009
Location: WV
Posts: 2,907
Rewards Points: 2
Default

Fixing sewer gas smell from 3" copper vent pipe


Wrap the connection in aluminum tape, the kind used for HVAC duct. Better yet, cut out all that copper and replace with PVC. Do you have any idea what copper is worth at a recycle place these days??
md2lgyk is offline   Reply With Quote
The Following User Says Thank You to md2lgyk For This Useful Post:
allthumbsdiy (11-14-2012)
Old 11-14-2012, 07:35 PM   #4
Member
 
Join Date: Jul 2012
Location: NJ
Posts: 377
Rewards Points: 0
Default

Fixing sewer gas smell from 3" copper vent pipe


I thought about using the foil tape but I thought it would not hold up, especially when taped to the brass fitting side. Good point about copper recycling but as I work on plumbing projects requiring the removal of copper pipes, I just clean and hold them for any future projects requiring copper pipes. No sense in melting down a working pipe, right?

Mike, thanks. JB weld was what I was thinking and no, the pipes are not completely loose but have hairline gaps between fittings and pipes, allowing sewer gas to escape.

Some pipes cross horizontally on the attic floor so I may just cut and replace them with PVC/Fernco to re-route them near the rafters. I just need to pre-plan how I will support these new fittings as Fernco fittings probably cannot support any weight.

Will report back soon on this "project".
allthumbsdiy is offline   Reply With Quote
The Following User Says Thank You to allthumbsdiy For This Useful Post:
oh'mike (11-15-2012)
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
3" drain vent pipe going thru shed roof amakarevic Building & Construction 1 02-08-2011 02:50 PM
Shop heater, gas pipe in contact with vent Richo HVAC 15 02-05-2011 10:28 PM
How to avoid sewer problems or gain the upper hand in a home purchase LateralConcepts How To Guides 0 02-01-2011 11:10 AM
Sewer gas smell in basement from sump pump mirage212 Plumbing 15 10-23-2008 06:09 PM
Underground orangeburgh pipe leading to storm sewer is blocked somewhere flashme18 Plumbing 10 07-21-2008 11:48 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.