Sewer smell in Master Bath
We recently had a shower pan leak in our master bath. (single story, cement slab). After tiling was finished, we noticed a sewer smell. After making sure the p-trap wasn't dried out etc...since we haven't used the shower for over a month, we finally had a plumber come out and take a look. We eventually settled on a smoke test to see if there were any vent leaks. There was one around the toilet and so we had that taken off and the flange was busted up pretty bad and so we had that fixed thinking that was the issue. Next day, sewer smell was back and just as bad as the day before. So we cleaned/scrubed the floors and bathroom thinking that maybe some of that was tracked in and around the bathroom from using the toilet. Smelled good for the first night but now am noticing the smell coming back. I could swear that there is a small odor coming from the grout used in the shower. Has anyone ever heard of anything closely related to my problem?