Ensign 8PE Sewage Treatment Plant

The Marsh Ensign is widely regarded as one of the most efficient, reliable and economical sewage treatment plants on the market.

Size Guide 

£2,431.20 inc VAT £2,026.00 exc VAT


Ensign 8PE Sewage Treatment Plant

This Marsh Ensign 8PE Sewage Treatment Plant can handle up to 8 people’s wastewater. The Shallow Ensign:Standard sewage treatment plant is widely regarded as one of the most dependable, dependable, and cost-effective sewage treatment plants currently available.

On the market, the average height of a water treatment plant is over 2.3 metres. Marsh Industries’ shallow plant ranges from 4-35PE and is just 1.6m deep, making installation not only possible but also much easier and safer.

Shallow Ensign sewage treatment plants are often favoured when hard rock site conditions necessitate deeper alternatives that involve costly and time-consuming excavation.

Exceptional results

All Ensign units have been inspected and approved in accordance with BSEN12566-3/A1:2009, and they provide national consent guidelines-compliant treatment. With influent concentrations on tests substantially higher than those selected by most competitor septic tank replacement plants, the reported test results of 11.5:19.2:8.4mg/ltr (BOD: suspended solids: ammonia) effectively equate to 97% pollutant removal.

Unparalleled variety

With sizes ranging from 4 to 35 PE in Ultra and Standard versions of each, as well as a wide range of ancillaries, almost all platform, approval, and budget requirements can be met. Risers to increase the invert’s depth are available upon request. Pumped outlets are also available upon request.

Why choose the Marsh Shallow Ensign:Standard?

End users, dealers, and installers alike praise the Ensign range for its ease of installation, reliability, and cost-effective operation and maintenance. Professional support from local contacts backs up a lot of this.

  • Inlet with ‘Forsheda seal’-Forsheda seal provides flexibility in the joint for easier installation. Optional risers to increase invert depth are available.
  • Primary settlement chamber
  • Aeration chamber
  • Advanced compressor with alarm (Ensign:Ultra units only)-Near silent compressor ensures minimal running, maintenance and servicing costs. Integral alarm detects low pressure in air line. (Regular Low-energy compressor on Ensign:Standard models).
  • Compressor housing – internal or external options available-The compressor can be housed internally or externally with no difference in cost. External recommended to increase compressor life, and supplied as standard on 4PE, shallow and pumped outlet versions.
  • RCD/Electrical connection (Ensign:Ultra units only)-The RCD box provides easier installation and provides a higher degree of safety. (Regular
    plug/socket connection on Ensign:Standard models).
  • PVC pressure pipe/diffuser(s)-Provides a protective conduit for the air diffuser line. Can be easily removed for maintenance and
  • Bio-media-High specification bio-media (310m3 per m2) and membrane diffusers ensure even circulation to eliminate ‘dead spots’. The bio-media is contained by a stainless steel securing mesh to ensure no migration during handling or potential flooding.
  • Stainless steel mesh (Ensign:Ultra units only)-Retains media in aeration chamber during transportation and handling, and in the event of flooding.
  • Final settlement chamber
  • 32mm sludge return-Larger diameter sludge return prevents the possibility of blockages and improves system circulation. Provides higher effluent quality whilst balancing flow over a 24 hour period or periods of intermittent use.
  • Unique Polylok tertiary filter (Ensign:Ultra units only)-The Polylok tertiary filter reduces suspended solids and BOD by a further 40% helping to extend drainage field life.
  • Outlet with ‘Forsheda seal’-Forsheda seal provides flexibility in the joint for easier installation. Optional pumped outlets are available.
  • Impermeable lid (Ensign:Ultra units only)-Heavy duty lid/frame improves strength and durability whilst blending into the surrounding
    environment. (Regular lid on Ensign:Standard models).
  • Integral lifting eyes-For safe and secure on-site handling.
  • Stabilising feet-Stabilising feet prevents the tank from rolling and allows safe and steady transportation and
  • Unique ‘keying-in’ lip-Assists anchoring into granular or concrete surrounds

Size Guide

Additional information

Size Required

Gravity, Shallow, Ultra, Ultra Shallow


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