Clogged stack vent comes to mind. Also, the inactive side of the sink
doesn't get the drain trap filled as often as it should.

I wonder why the smell is most intense in the living room, 20 feet away from
the kitchen? Hmm. You know, I did drain the 90 percenter furnace into the
drain line. But, I think the sewer smell predates the furnace replacement.

--

Christopher A. Young
Learn more about Jesus
www.lds.org
..

"Joe" wrote in message
...

Check your system venting. Also, all traps should be filled with water
to work.

Joe