What to compare
The cup should cover the waste opening completely and remain flexible enough to seal against the surface. Handle length affects control, while a removable or washable design makes hygiene easier.
- Cup diameter and flexibility
- Handle grip and length
- Ability to clean and dry the tool
- Storage that separates it from toilet tools
Technique affects the result
Seal the overflow where appropriate, add enough water to cover the cup and use controlled strokes without breaking the seal. A few deliberate cycles are more informative than prolonged aggressive plunging.
- Stable waste fittings
- Sealed overflow
- Cup kept below water
- No hazardous chemical present
A safer decision process
- 1
Remove the strainer or plug
- 2
Seal the overflow where suitable
- 3
Cover the cup with water
- 4
Use controlled push-and-pull strokes
- 5
Stop if fittings move, leak or the problem affects other fixtures
Important safety point
Do not plunge a drain that contains a corrosive product. Splashing can expose skin and eyes to the chemical.