Wet Filtration

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DRM has developed a sludge dewatering filter bag – the Sedi-filter. It is a complete dewatering solution for all your dewatering engineering projects.

The Sludge Dewatering Filter Bag works similar to a tea bag – you pump the wet waste into the bag and the clean water runs out freely whilst the solids are retained within the bag.


  • A passive dewatering and containment system
  • Made from durable, high-quality geotextiles


  • Captures solid material within water, slurries and sludge
  • Removes up to 90% of the waste


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  • Dried material can be spread as soil
  • Removed from the site
  • Blended into landscape
  • Create artificial reefs, weirs or berms in watercourses and in marine environments for erosion control or recreation – including surfing reefs.


  • No excessive or specialist machinery required
  • Can be used  where space is limited
  • Environmentally friendly
  • Low cost and highly effective

The Sedi-filter dewatering system has been created for small spaces with limited machinery access – all you need is a pump. The geotextile material is biodegradable so you have the option of leaving in on site – it will soon become part of the environment.

This clever piece of filtration equipment has been used very successfully in many different applications so that we’ve dedicated a stand alone page to the Sedi-filter.

Registered Office – Bond Street, Bury, Lancashire, BL9 7BE Company Registration No. 983478 Email Address - info@drm.co.uk - Terms & Conditions - Links - LinkedIn