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Wavin Twinwall infiltration pipes are slotted to allow controlled infiltration as water is transported along their entire length. This reduces the volume of water required to be drained at the endpoint and allows the re-charging of subterraneal aqua ducts.

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Transport and infiltrate

Wavin infiltration pipes allow water to infiltrate into the surrounding soil while transporting the flow. This reduces the rainwater load on the system endpoints, minimising the risk of flood or back-up. Easy to inspect and clean, monitoring and maintenance are minimised.

Smart wall profile

Wavin TwinWall pipes have a smart ridged wall profile which wins over smooth-wall pipes every time. The smart profile increases infiltration capacity, as proved both in our labs and in the field though independent testing. they come in 100mm – 1500 mm sizes to an SN6 stiffness classification.


Like all Wavin products, slotted TwinWall pipes meet all relevant regulation and compliance standards and are BBA Certified.

What’s next?

Wavin was the first to market these slotted TwinWall infiltration pipes. In hundreds of projects around the world, they are used to connect collection and infiltration systems. Wavin design services will provide you with a complete plan, optimising chamber spacing and end-point overflow.

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