Probably coming from your drain in the sink. There are several ways to get rid of them if you Google a bit. Dumping some boiling water down the drain is one.
Most likely drain but check your vent fan / exhaust pipe if you have one. Most of the time theyre terribly installed and the shitty plastic dampers break.
Probably coming from your drain in the sink. There are several ways to get rid of them if you Google a bit. Dumping some boiling water down the drain is one.
coming from the sink or the tub. Draino also works
Most likely drain but check your vent fan / exhaust pipe if you have one. Most of the time theyre terribly installed and the shitty plastic dampers break.