Wavin OsmaDrain

Rootseal logo and tree roots

OsmaDrain offers you the widest choice of pipe and fittings for house building, industrial and commercial projects. OsmaDrain systems are designed for use in gravity drainage and sewer installations in depths of up to 10 metres and are regulation compliant. 

Wavin has developed a new technology for Wavin OsmaDrain to provide added protection from trees and root ingress. Called RootSeal Technology, it uses a natural mineral additive to harmlessly repel tree roots reducing potential damage, upheaval and considerable costs - both financial and environmental.


RootSeal the story in full - eBrochure

To learn more about the inspiration for RootSeal, the science behind it and all the benefits it delivers for your next foul water drainage installation, just download the E-brochure. Download e-brochure here

Comprehensive range

OsmaDrain is a PVC-U gravity drainage system for use in building drainage applications. It includes fittings, junctions and bottle gullies, suitable for foul or surface water drainage. It comes in 110mm and 160mm diameters.


OsmaDrain includes the 110mm and 160mm award winning pipe made using Wavin’s unique Recycore technology, they have at least 50% recycled content yet perform just like virgin pipes.


The fittings have a captive seal for added peace of mind when making joints. Included in the range are inspection pipes and junctions, rodding eyes, gullies, covers and hoppers.


OsmaDrain pipe meets the requirements of BS EN 13476 and are Kitemarked. The majority of OsmaDrain fittings meet the requirements of BS EN 1401 and or BS EN 4660 and are Kitemarked. Easily calculate the pipe deformation values for your project with our online tool.

What’s next?

Want to learn more about how OsmaDrain could benefit your next project? Contact our Technical Design team for advice and support. You can also keep up to date with new product ranges, systems and projects by signing up to our Newsletter. And why not take this opportunity to have a look through our downloadable product guides, certifications and other literature.