Diagnose cause of septic smell

[wlsmith]

My half bath just underwent a remodel, which meant replacing toilet and sink. Now, on certain days only, I get a strong septic/sewer smell. (I have septic.) It comes and goes.

I don't know if I have a septic problem or a plumbing/install problem. How can I figure this out so I know whether to haul the remodeler back in here to fix it or I call someone else?

 

[frodo]

did the plumbing remodel include the use of an auto vent under the sink?
or is the plumbing vented out the roof

 

[wlsmith]

I believe all plumbing is vented out the roof.

 

[Rickyman]

Did you tile the floor? If so and there wasn’t tile before, your toilet flange is probably too low and you’re not getting a proper seal. We see that a lot if the contractor doesn’t use a plumber because “hey, anybody can set a toilet”

 

[frodo]

Ricky is bringing up my next question
Go Ricky....go ricky go ricky LOL

 

[wlsmith]

Yes, ceramic tile replaced vinyl. Bingo!

 

[frodo]

They make a spacer to fit over the flange to raise it up
that is an option
BUT
I would insist that the plumber, remove the old flange and set a new flange at the correct height.
which is.

face / top of flange is MINIMUM 1/4 above the finished floor
ideal height is bottom of flange sits level with top of tile

 

[wlsmith]

Talked to remo company (on a Sunday yet). He already committed to send a plumber this week. Good people.

 

[wlsmith]

Remo sent plumbo.
No mo' uh-oh.
Now, when wife go,
it doesn't smell-o .

 

[wlsmith]

FAIL. That did not solve the problem, as it turns out. Seemed good for awhile, but now the smell is back...sadly, badly.