I've noticed a strong sewage smell coming from both of my bathrooms for the last few days. I've checked under the house and I don't see any leaks in the pipes. Both bathrooms are used pretty regularly, and this smell is something new that I've never experienced before. I'm not sure what else I should be looking for or investigating.
3 Answers
Don’t forget to check if there are blocked vents. Sometimes if the vent(s) are clogged, it can cause bad smells in the house. That could be worth looking into!
It might be due to a buildup of urea crust under the toilet's jet ring. If it’s not regularly scrubbed, that can really start to smell bad. Maybe give it a good clean and see if that helps!
Check if your sinks have a pop-up drain assembly. Gunk and sludge can build up there and really stink. I've had great luck with a mix of vinegar and Dawn Powerwash; it helped me clear the smell from my drains. Give it a shot!
I don't think it's from the sinks. I checked, and it doesn't smell like sewage when I get close.

I just tried pouring some cleaner in there and gave it a good scrub. Right now, I can’t smell the sewage over the cleaner, but I’ll see how it smells once the cleaner scent goes away.