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Marsh ENCO Sewage Treatment Plant

£1,390.00£2,272.00 EX VAT

A cost effective sewage treatment plant with a compact design for easy installation.


The Marsh:ENCO is a high performance sewage treatment plant tested and approved to BS EN12566-3.  It has handy lifting eyes and stabilising feet for ease of transport and installation.

Key benefits of the Marsh:ENCO:

  • Ease of installation
  • Rosbust shell for installation in diverse ground conditions
  • Low energy compressor with built-in alarm
  • Sludge for improved system circulation
  • Manufactured from virgin GRP with no fillers
  • 10 year structural guarantee
  • CE approved to BS EN 12566-3
  • Fire resistance tested in accordance with EN ISO 11925-2:2010

Operating Principle

In addition to anaerobic digestion taking place in the primary settlement chamber the Marsh:ENCO unit allows the clarified water to pass into a second ‘aeration’ chamber where it is treated to remove the dissolved constituents.

In the second chamber the aerobic bacteria, supported by diffused air and mobile media, ensures full treatment is achieved before the treated effluent and ‘sloughed off’ bacteria flows to a final settlement chamber. The final effluent is then discharged to the drainage field or watercourse.

Pumped outlet and different invert options available, please contact us.

Offloading is the responsibility of the customer

The dimensions given on this page are for guidance only. Due to production processes, dimensions of finished units are within a tolerance of +/-50mm.

The Septic Tank Store also offers an installation service.

Model (pop) Length Width +/-50mm Height +/-50mm Inlet invert +/-50mm Inlet dia Outlet invert Outlet dia
ENCO 6 2602 1650 1935 550 110 625 110
ENCO 8 2602 1650 1935 550 110 625 110
ENCO 10 2602 1650 1935 550 110 625 110
ENCO 12 2860 1912 2139 550 110 625 110
ENCO 16 2860 1912 2139 720 110 800 110

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