--- title: New NORAG halts CSO Sewage Litter | Samatrix description: NORAG by Samatrix stops sewage overflow—no power, no maintenance. A smart, eco-friendly fix for rising city pollution. image: https://www.samatrix.co.uk/hubfs/SAMATEK+FEB23-1.webp --- [![Samatrix Logo](https://www.samatrix.co.uk/hs-fs/hubfs/Samatrix+Logo%20(1).png?width=749&height=158&name=Samatrix+Logo%20(1).png "Samatrix Logo")](https://www.samatrix.co.uk/) [![Samatrix Logo](https://www.samatrix.co.uk/hs-fs/hubfs/Samatrix+Logo%20(1).png?width=749&height=158&name=Samatrix+Logo%20(1).png "Samatrix Logo")](https://www.samatrix.co.uk/) - [About Us](https://www.samatrix.co.uk/about-us) - [Our Services](https://www.samatrix.co.uk/services) - [Pump Service](https://www.samatrix.co.uk/pump-service) - [Sewage Treatment](https://www.samatrix.co.uk/sewage-treatment) - [Hydraulic Analysis](https://www.samatrix.co.uk/hydraulic-service) - [Sewage Pump Installation](https://www.samatrix.co.uk/sewage-pump-installation) - [NoRag](https://www.samatrix.co.uk/norag) - Resources - [Accreditations & Certificates](https://www.samatrix.co.uk/accreditations-certificates) - [Projects](https://www.samatrix.co.uk/projects) - [News](https://www.samatrix.co.uk/blog) - [Contact Us](https://www.samatrix.co.uk/contact) [![Get a Rapid Quote](https://hubspot-no-cache-eu1-prod.s3.amazonaws.com/cta/default/146071823/interactive-358239161568.png)](https://www.samatrix.co.uk/hs/cta/wi/redirect?encryptedPayload=AVxigLK7NWxgQdTySVbJN9Awr72Gypz34mMfIGPNQjYe8u1WyVAbyqnZ4I3piq%2FmCJWNbwi8SZMnWGWxAV6DbZ7JzQ3N3xlZrDc6ttQojXv6Ft0Q8jeY%2Fir0n%2FD9la3ZglZu1kFViTq2A7n%2FqNrMLdCQ3D5BtKfr6x8Yw8JTy40EUerYTj%2FohEz35ZPmEXYCqSLWqIvyeDN3gnw6KXJnU4iqe7cAnE8BT28%3D&webInteractiveContentId=358239161568&portalId=146071823) [![Get a Rapid Quote](https://hubspot-no-cache-eu1-prod.s3.amazonaws.com/cta/default/146071823/interactive-358239161568.png)](https://www.samatrix.co.uk/hs/cta/wi/redirect?encryptedPayload=AVxigLK7NWxgQdTySVbJN9Awr72Gypz34mMfIGPNQjYe8u1WyVAbyqnZ4I3piq%2FmCJWNbwi8SZMnWGWxAV6DbZ7JzQ3N3xlZrDc6ttQojXv6Ft0Q8jeY%2Fir0n%2FD9la3ZglZu1kFViTq2A7n%2FqNrMLdCQ3D5BtKfr6x8Yw8JTy40EUerYTj%2FohEz35ZPmEXYCqSLWqIvyeDN3gnw6KXJnU4iqe7cAnE8BT28%3D&webInteractiveContentId=358239161568&portalId=146071823) - [About Us](https://www.samatrix.co.uk/about-us) - [Our Services](https://www.samatrix.co.uk/services) - [Pump Service](https://www.samatrix.co.uk/pump-service) - [Sewage Treatment](https://www.samatrix.co.uk/sewage-treatment) - [Hydraulic Analysis](https://www.samatrix.co.uk/hydraulic-service) - [Sewage Pump Installation](https://www.samatrix.co.uk/sewage-pump-installation) - [NoRag](https://www.samatrix.co.uk/norag) - Resources - [Accreditations & Certificates](https://www.samatrix.co.uk/accreditations-certificates) - [Projects](https://www.samatrix.co.uk/projects) - [News](https://www.samatrix.co.uk/blog) - [Contact Us](https://www.samatrix.co.uk/contact) [![Get a Rapid Quote](https://hubspot-no-cache-eu1-prod.s3.amazonaws.com/cta/default/146071823/interactive-358239161568.png)](https://www.samatrix.co.uk/hs/cta/wi/redirect?encryptedPayload=AVxigLK7NWxgQdTySVbJN9Awr72Gypz34mMfIGPNQjYe8u1WyVAbyqnZ4I3piq%2FmCJWNbwi8SZMnWGWxAV6DbZ7JzQ3N3xlZrDc6ttQojXv6Ft0Q8jeY%2Fir0n%2FD9la3ZglZu1kFViTq2A7n%2FqNrMLdCQ3D5BtKfr6x8Yw8JTy40EUerYTj%2FohEz35ZPmEXYCqSLWqIvyeDN3gnw6KXJnU4iqe7cAnE8BT28%3D&webInteractiveContentId=358239161568&portalId=146071823) [![Samatrix+Logo (1)](https://www.samatrix.co.uk/hs-fs/hubfs/Samatrix+Logo%20(1).png?width=400&height=84&name=Samatrix+Logo%20(1).png)](https://146071823.hs-sites-eu1.com) [01234 567 890](tel:01234%20567%20890)[info@samatrix.co.uk](mailto:info@samatrix.co.uk) Unit 1A, Century ParkSwansea Enterprise ZoneSwansea SA6 8RP [case studies](https://www.samatrix.co.uk/blog/tag/case-studies) # New NORAG halts CSO sewage litter by [Samatrix](https://www.samatrix.co.uk/blog/author/samatrix) 1 min read May 30, 2023 ![logo-1](https://www.samatrix.co.uk/hs-fs/hubfs/Act3-child/images/logo-1.webp?width=283&height=117&name=logo-1.webp)  [*Fluid Motion Solutions*](https://fluidhandlingmag.com/news/new-norag-halts-cso-sewage-litter/)*, part of the global National Oilwell Varco group, is backing a new patented product, NORAG, which has been designed to prevent sewage litter from combined sewage overflows (CSOs) that cause pollution.* *Developed by Samatrix, NORAG is a maintenance-free solution that has no moving parts and requires no electrical power.* *Using the Venturi effect, NORAG continuously draws off sewage debris from within the CSO screening chamber during storm conditions and high flows, allowing the screen to operate (as designed) for longer. This ultimately reduces the frequency of unconsented spills that result in sewage litter being sent to water courses. Fabricated from 316-grade stainless steel, NORAG has a product lifespan of around 30 years. It can be adapted to fit into most existing CSO’s without the requirement for costly excavations or structural modifications. NORAG simply returns any drawn off debris back into the main flow for disposal at the treatment works. NORAG inventor and Samatrix MD, Samuel Munn said: “The industry knows that due to ever increasing and more extreme storm events, existing screening systems alone can’t prevent the influent from thickening; resulting in inevitable screen blinding, eventually sending all this very unpleasant waste over the blocked screen into rivers and on to beaches. These measures are no match for today’s wastewater challenges. They are, unfortunately, doomed to fail.” Neil Davies, director of Industrial Business Development for NOV’s Fluid Motion Solutions, added: “Rather than simply trying to improve the screen in a CSO, which others have tried, but not resolved, we see the huge benefits in how Norag tackles the problem of sewage litter pollution. It is a completely different approach; making CSOs work far more efficiently and effectively. This is a golden opportunity for the water industry to stop ghastly sewage-related debris from being seen in rivers and on beaches.”*  - Recent - Topics - Archive Recent Topics - [case studies (7)](https://www.samatrix.co.uk/blog/tag/case-studies) - [projects (6)](https://www.samatrix.co.uk/blog/tag/projects) - [sewage treatment (6)](https://www.samatrix.co.uk/blog/tag/sewage-treatment) - [Sewage Pump Maintenance (4)](https://www.samatrix.co.uk/blog/tag/sewage-pump-maintenance) - [Hydraulic Service (2)](https://www.samatrix.co.uk/blog/tag/hydraulic-service) - [Sewage Pump Installation​ (2)](https://www.samatrix.co.uk/blog/tag/sewage-pump-installation) - [combined sewer overflow solutions (1)](https://www.samatrix.co.uk/blog/tag/combined-sewer-overflow-solutions) - [pump service (1)](https://www.samatrix.co.uk/blog/tag/pump-service) See all Archive - [September 2026 (2)](https://www.samatrix.co.uk/blog/archive/2026/09) - [August 2026 (2)](https://www.samatrix.co.uk/blog/archive/2026/08) - [July 2026 (3)](https://www.samatrix.co.uk/blog/archive/2026/07) - [June 2026 (3)](https://www.samatrix.co.uk/blog/archive/2026/06) - [May 2026 (2)](https://www.samatrix.co.uk/blog/archive/2026/05) - [March 2026 (3)](https://www.samatrix.co.uk/blog/archive/2026/03) - [January 2026 (2)](https://www.samatrix.co.uk/blog/archive/2026/01) - [December 2025 (1)](https://www.samatrix.co.uk/blog/archive/2025/12) - [November 2025 (1)](https://www.samatrix.co.uk/blog/archive/2025/11) - [September 2025 (2)](https://www.samatrix.co.uk/blog/archive/2025/09) - [August 2025 (2)](https://www.samatrix.co.uk/blog/archive/2025/08) - [July 2025 (2)](https://www.samatrix.co.uk/blog/archive/2025/07) - [June 2024 (1)](https://www.samatrix.co.uk/blog/archive/2024/06) - [November 2023 (1)](https://www.samatrix.co.uk/blog/archive/2023/11) - [July 2023 (1)](https://www.samatrix.co.uk/blog/archive/2023/07) - [May 2023 (2)](https://www.samatrix.co.uk/blog/archive/2023/05) See all ### Subscribe by email Share this [Share on X](https://x.com/intent/post?url=https://www.samatrix.co.uk/blog/we-have-made-the-shortlist-for-the-water-industry-awards-2023-gxy4c-gdabh&text=New+NORAG+halts+CSO+Sewage+Litter+%7C+Samatrix) [Share on Facebook](https://www.facebook.com/sharer/sharer.php?u=https://www.samatrix.co.uk/blog/we-have-made-the-shortlist-for-the-water-industry-awards-2023-gxy4c-gdabh&t=New+NORAG+halts+CSO+Sewage+Litter+%7C+Samatrix) [Share on LinkedIn](https://www.linkedin.com/shareArticle?mini=true&url=https://www.samatrix.co.uk/blog/we-have-made-the-shortlist-for-the-water-industry-awards-2023-gxy4c-gdabh&t=New+NORAG+halts+CSO+Sewage+Litter+%7C+Samatrix) Previous story [← We have made the shortlist for the Water Industry Awards 2023!](https://www.samatrix.co.uk/blog/we-have-made-the-shortlist-for-the-water-industry-awards-2023-gxy4c) Next story [WIA Update →](https://www.samatrix.co.uk/blog/wia-update) ## You May Also Like These Related Stories [Exciting Norag developments……](https://www.samatrix.co.uk/blog/exciting-norag-developments) [case studies](https://www.samatrix.co.uk/blog/tag/case-studies) ### Exciting Norag developments…… Jun 17, 2024 1 min read [The Impact of Wet Wipes and Nappies on CSOs](https://www.samatrix.co.uk/blog/combined-sewer-overflows-wet-wipes-nappies) ![Wastewater treatment facility managing sewage processing, representing the impact of waste disposal on combined sewer overflows.](https://www.samatrix.co.uk/hubfs/The-Impact-of-Wet-Wipes-and-Nappies-on-CSOs.png) [sewage treatment](https://www.samatrix.co.uk/blog/tag/sewage-treatment) ### The Impact of Wet Wipes and Nappies on CSOs Jun 25, 2026 3 min read [Understanding Combined Sewer Overflows](https://www.samatrix.co.uk/blog/understanding-combined-sewer-overflows) [combined sewer overflow solutions](https://www.samatrix.co.uk/blog/tag/combined-sewer-overflow-solutions) ### Understanding Combined Sewer Overflows Dec 03, 2025 3 min read ### Get Email Notifications [![Samatrix](https://www.samatrix.co.uk/hs-fs/hubfs/Samatrix+Logo%20(1).png?width=210&height=44&name=Samatrix+Logo%20(1).png "Samatrix")](https://www.samatrix.co.uk/) Expert hydraulic engineering solutions for critical infrastructure across the UK [Services](https://www.samatrix.co.uk/services) - [Pump Service](https://www.samatrix.co.uk/pump-service) - [Sewage Treatment](https://www.samatrix.co.uk/sewage-treatment) - [Hydraulic Analysis](https://www.samatrix.co.uk/hydraulic-service) - [Sewage Pump Installation](https://www.samatrix.co.uk/sewage-pump-installation) Contact - [01234 567 890](tel:01234567890) - [info@samatrix.co.uk](mailto:info@samatrix.co.uk) - United Kingdom Legal Pages - [Privacy Policy](https://www.samatrix.co.uk/privacy-policy) - [Cookie Policy](https://www.samatrix.co.uk/cookie-policy) - [Terms & Conditions](https://www.samatrix.co.uk/terms-and-conditions) © 2026 Samatrix Engineering Ltd. 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