Degrilleur™ trash barrier

Trash barrier for sewage treatment plants and pump chambers

When non dissolvable objects are flushed into the sewer and then into a sewage treatment plant or pump station downstream, it can lead to blockage or worse – possible plant failure.

To combat this Marsh Industries has developed the ‘Degrilleur’ – a bar screen which prevents any unsuitable materials from entering the system.

The unit has no moving parts and requires no electrics, is available in two capacities, 2000 and 12,000 litres, and is suitable for domestic, commercial and industrial installations.

The Degrilleur can also be used as a flow splitting chamber in multi-stream sewage treatment plants or as an upstream trash screen as part of stormwater attenuation systems.

Configuration and components are shown for illustration purposes only

Degrilleur - blockage prevention for sewage treatment plants and off-mains drainage systems

The Marsh Degrilleur, positioned ahead of the system inlet, blocks the debris and forces it to rise to the top of the chamber where it is collected in a retaining trough for disposal.


  1. Inlet (110 or 160mm)
  2. Grill and frame
  3. Perforated retaining trough
  4. Outlet (110 or 160mm)
  5. Manhole cover

Cylindrical degrilleur

Model (pop) Dia Height
MID-1 1100 1100
MID-2 1500 1500
MID-3 1700 1700

Horizontal degrilleur

Model (pop) Dia Length
MID-4 1900 2950
MID-5 1900 5200

For precise tank sizes and configurations, please contact Marsh Industries.
All dimensions in mm.
Due to production processes, dimensions of finished units are within a tolerance of +/-2.5%.

Marsh product portfolio and specifications
Marsh product portfolio and specifications