I have a sewer smell coming from bathroom sink trap. I've cleaned and flushed, does no good, what do I do?

Answer 1

You might be smelling "sewer gasses".
These odors are normally vented thru a pipe which runs from
your plumbing lines straight up, and thru the roof.
It's those 2" pipes you see coming from roofs.

If you live in a single family house, mobile home, or townhouse--
you can clear it yourself.
.
You do have to climb up on your roof.....
Take a garden hose with you, and put it down that roof pipe.
A moderate flow of water from the hose should dislodge anything small.

Answer 2

Sounds to me like you've got a plugged vent pipe. Drain systems have to have a vent pipe that usually goes out thru the roof, to allow air to enter the system so that water can flow through the pipes without creating a vacuum. If it gets plugged when water flows past an intersecting junction of lines, it will sometimes cause a vacuum or siphoning action that will pull the water out of a trap and then allow sewer gases to escape back up through. Have someone check the roof vent system to make sure it's not plugged. You can run a hose down thru the pipe and then turn it on. Sometimes birds get trapped in there, or an accumulation of leaves and debris builds up and causes a plug.
If you've flushed the trap with fresh water and the odors return, then pouring bleach or other deodorants down there isn't going to help.

Answer 3

it may desire to be some thing returned flushed into the S capture below, or it may desire to be that the plumbing would not hook up with a vent on that line. First attempt cleansing the drain by skill of utilising Liquid plumber pipe snake foam.. permit it set for over an hour and then run approximately 5 gallons somewhat heat water by it to flush... in case you sitll have the scent drop some fleishmanns yeast interior the drain and permit set in one day and flush interior the am. .. if its nonetheless there purchase a bottle of ammonia ( no longer bleach and don't combination with bleach the two ) and pour into the drain permit sit down till you ought to use it returned. As a final hotel have a plumber re plumb or verify to make helpful the vent tube is there or blocked, which might reason different matter to backflow in direction of that drain if its on the decrease point... utilising the ammonia rather of the bleach will thoroughly clean and deodorize the s pipe so which you will no longer could desire to replace it.

Answer 4

Pour alittle bleach down the sink drain. That's what I do to deoderize. Or any good smelling cleaner will also work. Like Lysol for floors or something.

Answer 5

I mix baking soda with white vinegar and pour it down the drain. I don't think the ratio matters much...try a tsp. in a cup of vinegar to start but watch out because it bubbles up while mixing and will overflow if not mixed in a big enough container.

Answer 6

Trap's broken. Call a plumber.

Answer 7

Pour in bleach; that will keep the smell down for a while (I have to do it about every 45-60 days).

Answer 8

There are usually some sort of vents for your sewer line. Check and make sure that isn't clogged up.

Answer 9

If the bleach doesn't work, I suggest using Drano. There may be something in the drain that is stuck. You might want to burn whatever it is that is stuck in there.