How to stop drainage smells from the siphon
Smell from a basin/shower is rarely “cured” with scented tablets. Diagnosis first. Siphon choice: guide.
| Symptom | Most common cause | What to do |
|---|---|---|
| Smell after a long absence | Dry water seal | Pour water in; for rarely used places — regularly |
| Smell + moisture in the cabinet | Leak at a joint | Check gaskets; replacement |
| Smell + slow drain | Blockage | Cleaning; then new siphon if the body is warped: Viega, Wirquin |
| Smell from the shower | Dry/damaged shower siphon | Viega shower siphon |
If the seal holds but smell remains — check ventilation/stack (tradesperson). Siphons · drainage.
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