Re: Sewer Gas Smell In Bathroom
Posted by JK on October 20, 2003 at 21:18:37:
In response to Re: Sewer Gas Smell In Bathroom
My bathroom was struck by lightning and I hired contractors to do the restoration. The work's done but my house constantly smells like the dreaded "silent one." I've been thinking it's my poor dogs. After a month of research and narrowing the suspects down, the smell is definitely coming from the bathroom. I'm afraid if I take more candles in there we'll all blow up. Am I too fearful? Really, sometimes the odor is so strong I'm afraid. And it's getting cold. I can't throw open the windows anymore.

But I read this thread and I called them right away. Let's hope they fix it. But then again...not quite as annoying...the faucet handles were installed wrong in the shower. One goes over, the other goes under to turn on water. If the smell doesn't, that's got the potential to drive me nuts until I die. I've asked them four times to fix it and they act like I haven't said a word. What's the secret? And should I worry about sewer gas poisoning? Seriously?

: : WE have a 40 year old building and our ladys bathroom is emitting a sewer gas smell. I did notice the the sink trap has a lot of activity in it when looking down into it with a flash light. Also when the trap is empty their is a force of air blowing in to the room. The roof vent is open I checked it. Do you have any ideas?"
: ---
: Hube hit it on the head. The traps should never be empty. To understand this, you need to understand how traps work and why they are there.

: Some people think traps are there to trap items that you drop down the sink. Not at all. There are there to "trap" a plug of water to act as a stop for sewage gasses from the sewer system. With the traps filled with water, gases are allowed to escape up thru the "dry vent" pipes .. which should be connected just past the traps and extend up thru your roof and out into the open air.

: When you flush a toilet or open the drain in a tub or sink .. a solid "block" of water fills the pipes .. creating a siphon. Without an open drain pipe and vent pipe .. the vent pipe can't break the siphon and the draining action will actually suck the water from the trap. If this clog is bad enough .. a flush or drain can actually suck the water from all the other connected vents (you flush the toilet and it can train the trap in the sink).

: Another way that you can loose trap water is thru a slow leak at the bottom .. you should investigate this if you can.

: Assuming that the building was built to code and the drains are propery and that the traps are not leaking .. then your problem is probably a clogged pipe or vent. You should snake all the pipes that are connected .. bath, sink, toilet. I would follow that up with a foaming, snaking drain cleaner that is safe for your type of pipes.

: If you have access to the roof and the vent, you might want to snake down the vent pipe as well.

: Angelo

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