I live in a 40 (approx) year old home that is on a public sewer line. Several months ago there was work done on the water lines (any correlation?), and the pressure seems somewhat lower since that time. Lately, I’ve also been experiencing a sewer smell from the drain in the basement. There has been no backup, and as a matter of fact, I had the lines from the house roto-rooted last fall, so there should be no blockages. Any ideas? Is there something I can do to help eliminate the odor, some sort of new contraption I can have installed …. ANYTHING?!? Thanks for any suggestions!