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Questions tagged [sewer-gas]

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2 answers
71 views

Is this safe for venting sewer gas?

I have a PVC vent stack that arises from the concrete floor of a one-level home, and rises straight up through the ceiling, into the attic, and out the roof. The stack is currently in a wall. I want ...
1 vote
2 answers
715 views

Sewage smell in bathroom and outside house

The day after moving into our recently purchased house in Oregon, we started noticing sewage smells on the back deck that were periodically overwhelming. We later began smelling it on the opposite ...
0 votes
0 answers
43 views

Sewer smells/Noxious fumes in house

We purchased a house 6 months ago in Western Oregon, a very wet climate. The old cement septic was cracked on inspection and replaced with a new poly one just prior to our arrival. The old one was ...
0 votes
1 answer
192 views

sewer gas leak stumped our plumber - what should we do next?

Sewer gas has been leaking into our main floor bathroom for the past couple of months. After several visits from our plumber with no success fixing the problem, he's told us he's stumped and doesn't ...
0 votes
1 answer
85 views

How can I check if my sink drain is properly trapped and vented without opening walls?

This is another question in my series of understanding my drain/sewer. I have a bathroom sink with a p-trap that enters the bathroom wall. Underneath the bathroom is a basement where I see the pipe ...
0 votes
0 answers
99 views

Do I need a p-trap although no sewer gases noticable and how to correct it?

I noticed that my washing machine drain may not be properly vented: There is just an ABS pipe sticking up behind the laundry. In the basement underneath, it just goes into a cast iron sewer line that'...
0 votes
0 answers
42 views

How to add condensate drain to this small section of cast iron/PVC sewer line?

I am looking for a way to connect a condensate drain line (pump from HPWH and HP) to this sewer part: The bottom part seems to be cast iron, the top part PVC. I do not know how they are connected. If ...
0 votes
2 answers
356 views

Smelling sewer gases from my washer

Our front-load washing machine has a problem where sometimes it really smells of sewer gas. This only happens occasionally, and we can only smell it when the door is open. We usually leave the door ...
2 votes
1 answer
5k views

Sewer Gas Smell From Shower But P-Trap Is Full

I smell sewer gas every other day or so in my basement bathroom which has a sink, toilet, and shower. The p-trap on all of them are full and when I get down and smell the drain of the shower, it has a ...
2 votes
2 answers
944 views

P-Trap missing on laundry drain / sewer smell

I moved into a new home with laundry room in basement and started to notice occasional wafting of sewer gas out of the laundry drain pipe. It is an older home built ‘58. It looks like there is no p-...
1 vote
1 answer
139 views

Connect washer drain lines to metal pipe

How do I best connect my drain lines to make the rubber-pvc and pvc-metal transitions water tight? I've got a washer and drawer washer combo with a drain line for each. There's no vent pipe to the ...
3 votes
2 answers
3k views

How is this sewer vent pipe meant to be capped?

My house is connected to public sewer. There's a ~100ft setback between the house and the road, and in that area, there are two pipes I think are associated with the sewer. One is a white pipe coming ...
2 votes
2 answers
95 views

Can this old drain pipe still be active

My house is a renovation of a 1940 house. Many of the old nonworking disconnected parts were left in during the reconnection, including this 5 or 6" cast iron drain pipe. I recently noticed that ...
0 votes
2 answers
379 views

Open sewer drain in basement for washing machine and water heater overflow pans [duplicate]

In my basement I often notice a sewer smell. It is likely caused by an open drain (I think it has a trap) that is used as an outlet for my washing machine and water heater's overflow drain pans. ...
5 votes
2 answers
1k views

Do I need water traps on my sinks with dry-well greywater collection?

My house has been fitted with water traps in toilet and bathrooms drains which is quite good, but I can see that my kitchen sink, washing machine outlet pipe and regular wash basin don't have water ...
0 votes
0 answers
227 views

Is this air admittance valve too small, broken, or in the wrong place?

This question is a follow-up to my earlier one about a sewer gas issue in my house. Since posting, and with the help of some of the comments, I've isolated what I believe is the problem: When the ...
0 votes
2 answers
224 views

Must drains be air tight?

I've got a cabin that had a closet reworked to include a washing machine, by the water heater. After the rework, the drain from the water heater pan and washing machine can freely move around a bit ...
4 votes
2 answers
1k views

Sewer gas smell in plumbing chase in old house

Over the last several weeks we've noticed a sewer gas smell in our upstairs bathroom at night when we run a whole house exhaust fan in the bathroom window. I found that in the basement where the ...