Mmueller
New Member
We recently (~4-6 weeks ago) had some bathroom work done. This included reworking of some drain lines. Since then, every so often we will get a strong sewer gas smell in the adjacent laundry room, which is a small room. The only drain in that room is the washer drain. The laundry room is half a level above the bathroom (split level). I’m assuming something is causing the washer trap to drain, causing the smell? Sometimes we’ll go 1+ weeks without the smell, other times only a day or two. I haven’t been able to recreate what specifically causes it, but it seems to happen more often on weekends when everyone in the house is home and when it rains. I plan to have the plumber come back out for this but the only thing that seems to be different from before the work is how the toilet/shower tie into the waste line and that the washer drain and sink drain now tie together before entering the main line. The toilet/shower tied in at the horizontal run and now tie in at the vertical. I’ve included a before and after sketch of the plumbing, as well as a picture of the current drain lines. Any advice before meeting with the plumber would be greatly appreciated!