I've got sewer gas in a bathroom my new construction, source unclear. No dry traps, replaced (and doubled) the wax seals, checked the roof vent, no obvious liquid leak anywhere. Smell present for months-- this isn't a dead animal. I suspect I have a hole somewhere in a vent pipe, probably due to an electrician drill bit. Sheet rock is up, complicating the situation. I did a Google search, and several people have recommended capping the roof vent and the septic, and placing a "smoke bomb" in a clean out. Smoke will fill the system and presumably leak out the hole, wherever it is. The local plumbing supply houses haven't heard of this technique, and don't sell "smoke bombs". One of them raises the reasonable concern that a burning "smoke bomb" could damage the plastic pipe. Has anyone heard of this technique, is it reasonable, where are "smoke bombs" available, are there other techniques available that would be more reasonable? Thanks-
- posted
19 years ago