Camera inspections are pricey, but honestly, they’ve saved me a ton of guesswork. I tried enzyme cleaners and snaking first, but the smell kept coming back—turned out there was a cracked pipe under the slab. If you’re dealing with old clay lines, I’d lean toward getting a camera down there sooner rather than later. Sometimes it’s just a venting issue, but those hidden breaks can be sneaky. Don’t beat yourself up if the cheap fixes don’t work right away... some of these problems are just buried deep, literally.
“Sometimes it’s just a venting issue, but those hidden breaks can be sneaky.”
That’s the tricky part—venting vs. actual pipe damage. I’ve seen folks tear up half their basement thinking it’s a main line break, only to find a blocked vent stack on the roof. Did you notice any gurgling drains or slow toilets before the smell started? Sometimes those are early signs. Also, if you’re dealing with clay lines, have you checked for root intrusion? That’s another common culprit, and it can cause cracks or even collapse sections of pipe. Safety-wise, if you’re smelling rotten eggs, always double-check for gas leaks too—sometimes it’s not just wastewater.
Funny you mention root intrusion—I once pulled a chunk of tree root out of a clay pipe that looked like it belonged in a horror movie. Folks forget how much those old lines can shift and crack. Ever tried the “smoke test” for venting issues? It’s wild watching smoke pour out of places you didn’t even know existed. Curious if anyone’s ever had a smell that turned out to be something totally unrelated, like a dead critter in the wall...
Curious if anyone’s ever had a smell that turned out to be something totally unrelated, like a dead critter in the wall...
That’s a classic. I spent two weeks convinced my basement was about to explode from a sewer gas leak, only to find out it was a mouse that had crawled into the insulation and, well… didn’t make it out. The “rotten eggs” smell is so hard to pin down sometimes. I even tried the old “sniff every drain” trick, thinking maybe a trap dried out somewhere. Nope—just rodent eau de parfum.
For anyone else chasing weird smells on a budget, here’s my go-to checklist before calling in the pros:
1. Check all your floor drains and sinks—pour a cup of water down each one. Sometimes those traps dry out and let sewer gas sneak in.
2. Give your washing machine drain hose a sniff (gross, but necessary). Lint and gunk can build up and get funky.
3. If you’ve got a sump pit, pop the lid and take a whiff. Sometimes organic stuff collects there and gets ripe.
4. Walk around outside and see if any vent pipes are blocked by leaves or bird nests. I once found a squirrel’s stash of acorns jammed in mine.
I haven’t tried the smoke test myself, but I’ve seen videos—looks like something out of Ghostbusters. Not sure I trust myself not to set off every smoke alarm in the house.
Has anyone ever had an issue where you’re sure it’s plumbing, but it turns out to be something electrical? My neighbor swore his “sewer” smell was actually from an overheating outlet behind his dryer. Never would’ve guessed that one...
Funny you mention the electrical thing—I’ve actually seen that more than once. Sometimes a burnt wire or outlet gives off this weird, fishy or sulfur smell that’s really easy to mistake for plumbing. It throws people off every time. Those “sniff tests” are half science, half detective work.