update on odor 9 plumbers can't fix

Moderator Post (s) for this thread: > Questions: by homebild on 04/22/2008 > House Trap by homebild on 04/22/2008 > House Traps are Largely Prohibited by homebild on 04/22/2008 > A few things by Handyman on 05/05/2008 > Smoke Test by Handyman on 05/06/2008 > These valves by Handyman on 05/06/2008 > Washing machine drain by Handyman on 05/08/2008 > The toilet or sink nearest the by Handyman on 05/08/2008 > Glad to hear by Handyman on 05/19/2008

Now we can make it 12 plumbers who are stumped. Have had all clean outs, vents etc, looked at with a camera, no breaks...replaced pipes in wall where odor is strongest, odor came back, removed toilets to check seals and broken pipes below, nothing showed up. Odor still comes and goes. Any more suggestions?