smelly drain help

[timbalcombe]

Hi everyone,

Investigated my drainage today.
It seems my kitchen waste eg w/mc and sink go into what I believe is called a Gully trap??
I had a poke around in the gully to see if I could find the exit pipe.
After a while I discovered a big black plastic blanking plug on the exit pipe entrance.
Should this be there and what purpose does it serve if so?
Thanks
Tim

 

[Bahco]

After a while I discovered a big black plastic blanking plug on the exit pipe entrance.

Is the gully you refer to outside and your waste pipe drains into it?

MORE INFO PLS

 

[timbalcombe]

Yeah it is sorry.
The plug type object is part of the gulley.

In summary;
Washing mc has own pipe running into gulley
Sink waste and condense waste (pipe flows into trap) flow into the gulley also on a seperate pipe.

I have removed the plug in a hope that this will clear the smell, especially now there is some air getting down in it.

 

[noseall]

the plug you talk about is probably the trap by-pass. it is removable to facilitate cleaning the gulley bottom and should be replaced.

all gulleys smell after a while. a squirt of bleach and a blast with a hose on a regular basis keep them clean.

 

[timbalcombe]

And it stops the noises of the sewer travelling up me pipes!
No smells with the plug off.
Damn do i need to put it back in.
Doh!