Washbasin drainage system explained: parts, materials, and common leaks
- tanganna387
- Jul 22
- 1 min read
If your basin drains slowly or you’re seeing drips under the sink, the drainage system is usually the first place to check.
Two reliable options
WaiiHO 027 Washbasin Drainage System: https://www.waiiho.co.uk/product-page/waiiho-027-washbasin-drainage-system-304-stainless-steelpp
WaiiHO 028 Washbasin Drainage System: https://www.waiiho.co.uk/product-page/waiiho-028-washbasin-drainage-system-304-stainless-steelpp
What’s included (typical)
Waste fitting
Seals and washers
Trap connection
Pipework to the waste outlet
Materials: why 304 stainless steel matters
304 stainless steel is corrosion-resistant and well-suited to daily bathroom use.
Common leak points
Loose compression fittings
Misaligned washers
Overtightened seals causing distortion
Shop drainage systems
Shop WaiiHO 027: https://www.waiiho.co.uk/product-page/waiiho-027-washbasin-drainage-system-304-stainless-steelpp
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