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Travis Perkins£11.62Visit shop Osmadrain Drainage Rainwater Adaptor 110mm
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Amazon£12.05Visit shop Osma Terracotta Wavin 4D149 110Mm Drain Adaptor For 68Mm Round Downpipe
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The OsmaDrain Drainage Rainwater Adaptor (MPN: 4D149) is an essential component for residential and commercial drainage contractors and DIY installers needing to bridge the gap between heavy-duty drainage infrastructure and standard rainwater management. It provides a secure, leak-proof transition from 68mm round downpipes to 110mm drainage pipes, ensuring optimal flow in foul and surface water gravity systems; however, users should note that it is strictly designed for gravity-fed applications rather than pressurized systems.
| Model Part Number | 4D149 |
|---|---|
| Brand | Osma |
No, this adaptor is specifically designed for gravity-fed foul and surface water drainage applications only.
The OsmaDrain 4D149 is rated for use at depths of up to 10 meters.
No, this specific model is designed exclusively for 68mm round downpipes.
The adaptor is designed as a push-fit component, but ensure you follow standard drainage installation practices regarding joint integrity.
Yes, this component is intended for use in underground gravity drainage systems.
Apply a small amount of silicone lubricant to the seal and ensure the pipe end is square and free of sharp burrs.
Verify that the pipe is fully inserted and check the condition of the internal rubber gasket for debris or damage.
To ensure proper installation, first check that the 110mm drainage pipe is cleanly cut and deburred to prevent damage to the adaptor's internal seals. The 68mm downpipe should be inserted into the adaptor until fully seated to ensure a secure connection. When installing, always maintain the recommended fall (gradient) for your drainage system to ensure efficient water runoff. Compatibility is limited to standard 110mm drainage and 68mm round PVC downpipes. Periodically check the joints during annual property maintenance to ensure the assembly remains clear of debris and that the connection has not shifted due to ground settlement.
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