Sewer Smell In Basement (with Pictures) - 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 02-07-2013, 06:03 PM   #1
Newbie
 
Join Date: Sep 2012
Location: MD
Posts: 16
Rewards Points: 10
Default

Sewer smell in basement (with pictures)


Evening. I'm another of those folks with intermittent sewer smells in the basement. I'll try to be brief ...

I moved into this house 6 months ago. During one of my multiple viewings, there was a sewer smell in the basement of the house. An inspector determined that the smell was coming from an open pipe, apparently disconnected from where the sink/dishwasher used to drain (it was moved when the kitchen was remodeled). He said once capped, the smell would go away. You can see the pipe/drain and where it was capped (white cap). I was fine with the explanation, it was capped, and no smell for several months, though I wasn't fully moved into the house.

Lately, the smell has returned, and seemingly comes from the area near where the main line goes thru the wall, and out to the septic - the same area as before. There's a picture of the main line attached. The smell occurs perhaps once a week, at most, and I have tried to pinpoint any actions on my part that may cause it. I have no ideas, though I thought it may coincide with doing dishes ... and I ran about 30 gallons of water thru the sink last night while sanitizing my water softener, and the smell was back this morning.

There are no floor drains in the basement, though there's a sump pit on the opposite end of the sewer line. The heat pump units (there are 2), both in the basement area and one unit close to the sewer line, apparently drain via a drain pump elevator, thru a copper line that elevates about 8', then continues outside of the house, though I see no evidence of any recent drainage where the copper line exits. I assume it would drain in the winter, but not sure.

I painted the basement floor with a white sealant about 8 weeks ago, and there's a very small rust colored splotch that obviously appeared after my paint job, about half the size of a dime, under the main line.

The line goes thru the wall to an older septic tank, that then drains (lifts?) to another, new septic tank that you see in the picture. The white pipe area is capped. There is no other clean out or "candy cane." I can hear constant dripping in this area of the septic. The septic inspector rated this septic set-up as one of the best he'd seen in the area, giving it an "A" grade. The dripping always was baffling to me but he wasn't concerned.

There's an older toilet on the main floor that I want replaced, and doesn't seem too powerful, if that makes sense - but it drains fine. The sink in that bathroom is fine. All other toilets and water/waste drain perfectly fine, too.

Any ideas? I haven't checked the roof vents ... if they are blocked, would that cause the smell in the basement, and not in other areas of the house? Would it be better to eliminate the capped line in the basement completely, and just have the line from the kitchen run directly into the main line? Could the trap on the capped piece be dry, and therefore the smell I smell is a result of the dry trap that I can no longer access?

Appreciate any ideas/help before I start spending some $$$. Thanks for your time and making it this far.

Chris
Sewer smell in basement (with pictures)-sewer-septic-cover_small.jpg

Sewer smell in basement (with pictures)-sewer-pipe_small.jpg

Sewer smell in basement (with pictures)-sewer-pipe-2_small.jpg

Advertisement


Last edited by cne24; 02-07-2013 at 06:13 PM.
cne24 is offline   Reply With Quote
Old 02-07-2013, 06:37 PM   #2
MarginallyQualified
 
Join Date: Dec 2011
Location: Winston-Salem NC
Posts: 3,814
Rewards Points: 2,302
Default

Sewer smell in basement (with pictures)


Tank condition? Pump or Enzyme?
But until you scope that old line... it's all guesswork.

Advertisement

TarheelTerp is online now   Reply With Quote
Old 02-07-2013, 06:44 PM   #3
Newbie
 
Join Date: Sep 2012
Location: MD
Posts: 16
Rewards Points: 10
Default

Sewer smell in basement (with pictures)


Quote:
Originally Posted by TarheelTerp View Post
Tank condition? Pump or Enzyme?
But until you scope that old line... it's all guesswork.
I hate to admit ... I have no idea. The inspector said that, from what I recall, the waste flows from the older tank to the newer tank, and then out to the drain field. But my memory is suspect ... and not even sure if that makes sense.

I saw them take the cover off the older septic side, and saw the liquid/waste leaving the line into this area. When you say scope the old line - are you talking about the line from the house to the area where it drains into the septic? And what does the scope entail, opening the cap inside the house (from where I shot the pictures) and looking down the line? Please forgive my ignorance ...
cne24 is offline   Reply With Quote
Old 02-11-2013, 07:16 PM   #4
Newbie
 
Join Date: Sep 2012
Location: MD
Posts: 16
Rewards Points: 10
Default

Sewer smell in basement (with pictures)


Any other thoughts?

Fwiw, I ran the dishwasher and the smell did not return. I did flush a toilet I rarely use (every three days) and the smell returned, though faintly. Leaking ring?

I have read about a smoke test on the forum - how much typically do they run? Assume the cost is entirely labor?
cne24 is offline   Reply With Quote
Old 02-11-2013, 07:37 PM   #5
MarginallyQualified
 
Join Date: Dec 2011
Location: Winston-Salem NC
Posts: 3,814
Rewards Points: 2,302
Default

Sewer smell in basement (with pictures)


Quote:
Originally Posted by cne24 View Post
I hate to admit ... I have no idea. The inspector said...
But my memory is suspect ... and not even sure if that makes sense..
Call the inspector back and find out.
The system should be on file with the county as well.

Quote:
When you say scope the old line - are you talking about the line from the house to the area where it drains into the septic?
Yes. Even after you learn what is *supposed* to be there you still need to know it's condition and operation.

http://extension.umd.edu/environment...es/septic.html
LINK to line scoping video's
TarheelTerp is online now   Reply With Quote
Reply

Tags
sewer gas , sewer gas smell , sewer line , sewer smell


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
smell in basement from non-vented kitchen sink ahgill Plumbing 3 10-11-2010 03:39 PM
Sewage smell in basement and kitchen jzellers0277 Plumbing 2 08-24-2010 10:58 PM
Basement Floor Drain & Sewer Gas 1914 Home Plumbing 4 09-26-2009 04:46 PM
Sewer smell in basement BangHeadHereX Plumbing 2 09-15-2009 02:22 AM
Sewer smell after hooking into plumbing vent daveyd Plumbing 10 08-10-2009 07:25 PM




Top of Page | View New Posts