DIY Chatroom Home Improvement Forum

DIY Chatroom Home Improvement Forum (
-   Plumbing (
-   -   Need advice about washer drain (

AndyH24 08-19-2012 03:27 PM

Need advice about washer drain
Hi all. I live in East TN. I have a split foyer house that was built in 2001. We moved into the house in late 2009. I am having a problem with a sewer smell in the bathroom /laundry room. Everytime we turn on the washer we start smelling sewer. We are on city water and sewer. We have not always had this problem. It started several months ago and it doesn't do it everytime we turn on the washer but here lately it is starting to be everytime though. We have a whirlpool front load washing machine. The best I can tell by looking at the plumbing in the basement is that I have a 2" vent line (vented through roof) coming down inside the exterior wall and it goes through the floor into the basement and ties into my main 4" drain to sewer. Now, somewhere inside the wall I believe the washing machine standpipe is tied into this vent line. And, if it has a trap, it must be inside the wall. I'm betting it doesn't have one though but I don't know.

What could my problem be and what else could I look at to help you all determine the problem? I will be working night shift tonight so I won't be able to look at anything at the house but I can respond to posts.

Thanks very much!

TheEplumber 08-19-2012 04:07 PM

199 Attachment(s)
First step I'd take is to make sure all the room's traps have water in them- floor drain shower/tub, lav..
I'm confident a laundry installed in '01 will be trapped

AndyH24 08-19-2012 09:20 PM

Yes, all the other traps in the room have water in them. The smell is coming from behind the washing machine where the standpipe is.

Alan 08-20-2012 09:21 AM

Pictures showing what you're describing below the floor would be helpful... for some reason i'm having a hard time picturing this one.

md2lgyk 08-20-2012 01:12 PM

It certainly sounds as though there's no trap on the washer standpipe. Since you have a basement, I'd be really surprised if a trap was inside the wall. That isn't normally done.

There is another remote possibility. The newer front-loading washers are so watertight that mold can build up in them if you leave them idle with the door closed for long periods.

AndyH24 08-20-2012 03:23 PM

We always leave the door open to the washer so it can dry out.
Here is a pic of the pipes in the basement.
You can see the hot and cold supply lines and the pipe to the right is what i believe to be a vent line going up and through the roof. I think the standpipe ties into that line in the wall somewhere.

TheEplumber 08-20-2012 05:17 PM

199 Attachment(s)
I was thinking your washer was in the basement, but instead is on the 1st floor?
In the wall behind the machine it should look like this- or close to it. You'll need to open the wall to check for a trap.
The only thing that picture shows is the washer drain tying into the stack
But I don't like it's tie in point- appears to be upstream from the toilet vent and perhaps a san tee on it's side- can't tell with the bike tire in the way

AndyH24 08-20-2012 06:05 PM

thanks for the pic, that helps me understand what should be done behind the wall. That 1 1/2 or 1 1/4 pipe you see coming in close to bike tire is actually the drain from the bathtub. The toilet vents are on over past bike out of the pic. I climbed up on the roof today and shined a light down the vent that the washer is tied into and I did not see any obstructions.

TheEplumber 08-20-2012 06:22 PM

199 Attachment(s)
I have a hard time believing your washer is not trapped- it's a pretty new home and should have been inspected

AndyH24 08-20-2012 07:19 PM

i agree, id say it does have a trap. I don't know why i'm getting this smell.

jaydevries 08-20-2012 08:23 PM

if you have a clean out you can smoke bomb and look for smoke

All times are GMT -5. The time now is 06:12 PM.

vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.

Search Engine Friendly URLs by vBSEO 3.6.1