Dishwasher empties and a foul smell comes up the drain.

[Trillian]

I always run a bit of eucalyptus oil down our bathroom one every now and then when it smells. There is probably grease blocked up in the pipe making it smell, so you could try to have it cleaned out.

[Tanya]

Do think it would be the dish washer hoses or the sink? It really is disgusting!