Casa · Sink smell
Plunger, then the trap. No caustic soda. The stack = a plumber.
1 / 4
Outcome A / B / C — not a job
What to do now (€ 0)
Household moves, not a building site. A stick and a deodoriser do not fill a dry trap and do not repair the sewer.
4–12 €
Example enzymatic/biological treatment after water in the trap. Not an acid, not a stack unblocker.
When: After 1–2 L of water in the trap, a smell in your own home.
Not when: The stack, a total blockage, a smell in the stair.
Amazon Associates is live on the Italian edition only. No Amazon.com link here yet. A category example, not a model review.
C) Who to call
If it goes after water: nobody. If it returns in the stair: the manager + a plumber.
Qordac has no tied tradespeople and does not book jobs. Enter the town: we open PagineGialle for that place. You check reviews and VAT. Not a Qordac ranking.
https://www.paginegialle.it/ricerca/Idraulico/{comune}
https://www.paginegialle.it/ricerca/Elettricista/{comune}
Phone directory, not quotes: paginebianche.it.