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Sewage Treatment Systems
Marsh Ensign shallow dig sewage treatment plant.
  • Marsh Ensign shallow dig sewage treatment plant.
  • Cross section of Marsh Ensign sewage treatment plant.

25 Person Marsh Ensign Shallow Dig Sewage Treatment Plant

5 - 7 working days
5 - 7 working days
Large Item
£6,587.42 (Ex. VAT)
Free Delivery (Restrictions Apply)

Delivery from £15 5 - 7 working days

Carbon neutral delivery from JDP vehicles

Return within 30 days for a full refund

Product Details


Inhabitants: Up to 25 people
Length: 4200mm
Width: 1912mm (+/- 100mm)
Height: 1600mm
Depth to inlet invert level: 500mm
Fall between inlet & outlet: 75mm
Pipe & Fittings: 160mm

Effluent Quality

BOD5: 11.5 mg/l
NH4: 8.4 mg/l
SS: 19.2 mg/l

Marsh Ensign sewage treatment plants are considered one of the most efficient, reliable and economical solutions to off-mains waste water processing.

The Shallow Dig Marsh Ensign sewage treatment plants are just 1.6m high leading to a 20-30% reduction in excavation. They are often favoured when hard rock site conditions mean deeper excavation is costly and time consuming.

Tanks consist of three chambers; the first a primary settlement chamber where anaerobic digestion produces clarified water which filters to a second aeration chamber where, supported by diffused air and bio-media, bacteria treats the effluent. The third chamber is a settlement chamber where effluent is discharged into the drainage field or local watercourse.

Pumped versions and external cabinets available.

  • Tested to BS EN 12566:3 and CE-marked
  • Three chamber system correctly sized for separation and retention of solids improves final effluent quality
  • Low energy compressors ensure minimal running, maintenance and servicing costs
  • High specification bio-media (310m3 per m2 ) and membrane diffusers ensure even circulation to eliminate 'dead spots'
  • Integral lifting eyes for improved on-site handling
  • Unique ‘keying-in’ lip to assist anchoring into granular or concrete surround
  • Simple maintenance with easy desludging
5 - 7 working days
25+ Persons
Install Type:
Large Capacity
Product Type:
Sewage Treatment Plant

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