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Plumbers of the OT: Sewer gas smell in the bathroom.

Posted on 12/27/17 at 7:10 am
Posted by LSUTigersVCURams
Member since Jul 2014
21940 posts
Posted on 12/27/17 at 7:10 am
We just moved into a new house, which is great except there's a smell of sewer gas coming from one of the bathrooms. What could be causing this? How screwed am I?
Posted by tLSU
Member since Oct 2007
8692 posts
Posted on 12/27/17 at 7:11 am to
Flush.
Posted by Crusty
Baton Rouge
Member since Aug 2011
2780 posts
Posted on 12/27/17 at 7:13 am to
Is this happening when you turn on the hot water? If so, you may have to flush your hot water tank and replace the cathode. That's not a big deal.
Posted by DavidTheGnome
Monroe
Member since Apr 2015
31597 posts
Posted on 12/27/17 at 7:13 am to
That and maybe jiggle the handle.
Posted by Scooba
Member since Jun 2013
20027 posts
Posted on 12/27/17 at 7:13 am to
Remove the gerbil.
Posted by LSUTigersVCURams
Member since Jul 2014
21940 posts
Posted on 12/27/17 at 7:14 am to
quote:

Is this happening when you turn on the hot water?


No it's pretty much all the time.
Posted by jmarto1
Houma, LA/ Las Vegas, NV
Member since Mar 2008
39270 posts
Posted on 12/27/17 at 7:15 am to
Did you check if someone upper decked you?
This post was edited on 12/27/17 at 7:16 am
Posted by djangochained
Gardere
Member since Jul 2013
19185 posts
Posted on 12/27/17 at 7:15 am to
Seal around the toilet is comprised

RE install toilet with new wax rings and RE caulk

Any plumber can do this for 1-2 hours, just get a new toilet while you at it
Posted by slackster
Houston
Member since Mar 2009
91874 posts
Posted on 12/27/17 at 7:16 am to
quote:

No it's pretty much all the time.



Sounds like a seal is bad somewhere.
Posted by Capital Cajun
Over Yonder
Member since Aug 2007
5634 posts
Posted on 12/27/17 at 7:17 am to
Is this a bathroom that gets used? The sink trap may have dried out letting the gas in.
Posted by MadDoggyStyle
Member since Feb 2012
3857 posts
Posted on 12/27/17 at 7:17 am to
Are you on a city sewer system or a septic tank? If you have a septic system, it may be plugged or malfunctioning.
Posted by CoachChappy
Member since May 2013
34338 posts
Posted on 12/27/17 at 7:17 am to
quote:


Seal around the toilet is comprised

RE install toilet with new wax rings and RE caulk

Any plumber can do this for 1-2 hours, just get a new toilet while you at it


This is also an incredibly easy DIY job. I’m replacing one of the wax rings in my house today. Check YouTube for instructions.
Posted by LSUTigersVCURams
Member since Jul 2014
21940 posts
Posted on 12/27/17 at 7:21 am to
City system
Posted by ruzil
WNC
Member since Feb 2012
18467 posts
Posted on 12/27/17 at 7:23 am to
Maybe the p trap under the sink has dried out if it hasn’t been used in a while.
Posted by Tyga Woods
South Central Jupiter Island, FL
Member since Sep 2016
42937 posts
Posted on 12/27/17 at 7:24 am to
Probably need a new wax ring baw
Posted by Chuker
St George, Louisiana
Member since Nov 2015
7544 posts
Posted on 12/27/17 at 7:27 am to
quote:

Seal around the toilet is comprised

RE install toilet with new wax rings and RE caulk

Any plumber can do this for 1-2 hours, just get a new toilet while you at it




I want to upvote this but because of the new toilet thing I can't. Everything else is truedo.
Posted by Charlie Arglist
Wichita, Kansas
Member since Nov 2012
5550 posts
Posted on 12/27/17 at 7:47 am to


Do you have a cousin named Eddie?
Posted by mdomingue
Lafayette, LA
Member since Nov 2010
48733 posts
Posted on 12/27/17 at 8:15 am to
quote:

Seal around the toilet is comprised

RE install toilet with new wax rings and RE caulk

Any plumber can do this for 1-2 hours, just get a new toilet while you at it




Very good answer. If you want to do it yourself, it is not difficult, I'd recommend get the oversized wax ring and toilet shims if you have noticed a "wobble" when on the toilet.

If you have a sink or tub that you rarely use (like months of no use) in that bathroom, run the water first there and see if the smell goes away. Occasionally the water in the trap of a seldom used drain will evaporate enough to compromise the seal and allow gasses through.
Posted by Napoleon
Kenna
Member since Dec 2007
74908 posts
Posted on 12/27/17 at 8:17 am to
Almost always a bad wax ring under the toilet. Toilets are the only plumbing fixtures without a p trap.
This post was edited on 12/27/17 at 8:19 am
Posted by djangochained
Gardere
Member since Jul 2013
19185 posts
Posted on 12/27/17 at 8:31 am to
When I purchase a home I replace all toilets
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