Marsh Uni-Gem Septic Tank to Sewage Treatment Conversion Unit - 12 Person

Product Code:
Free UK Delivery
Est. Delivery: 5-7 Working Days
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£2,400.00 Incl. VAT
£2,000.00 Ex. VAT
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Product Description

Other sizes avaliable, prices on request.

Uni:Gem range uses aerobic extended aeration, combined with biomass activation through Warden Plastics Media Technology. The plant infuses air into the effluent, biomass (microorganisms) multiplies at a very fast rate which accelerates the digestion of the nutrients in the sewage, and this rapidly lowers the Biological Oxygen Demand (BOD). The process is continuous, and results in the lowering of the Total Suspended Solids (TSS) and the reduction of Ammonia (NH4) in the final treated effluent.

In the Marsh Uni:Gem plant the nitrification of the ammonia and then the de-nitrification of the nitrates is processed through the mass of the bacteria. The Uni:Gem range is designed in engineered glass fibre moulds, to provide the optimal conditions for the formation of biomass for the breakdown of raw sewage. The result of the process will meet the future European Standard EN12566-6. Marsh Industries are at the fore front of product develop in the sewage and effluent treatment industry.

  • Extremely strong moulded 8mm GRP
  • Stainless steel fixings
  • Media bed surface area 310m2 per m3
  • Silent compressors with housings
  • Variable inverts, easy de-sludge access
  • Low maintenance / quick fit diffusers
  • Compressor alarm included
  • RCD box included
  • All components easily accessed
  • Gravity or pumped outlets
  • Designed to meet EN12566-6
  • Stainless steel lifting eyes

Marsh Uni-Gem Septic Tank to Sewage Treatment Conversion Unit Specifications

Height: 1200 x 2200
InletInverts: 1005mm
Outlet Inverts: 1080mm  
Power:100 Watts
Gravity Outlet

Product Documents


Product Type Conversion Unit Material GRP Operational Type Pumped

Frequently Bought Together

Questions & Answers


I have recently had a marsh gem treatment plant installed. I am getting a strong ammonia/sewage smell coming from the vent pipe in the garden by the treatment plant. Is this normal after installation whilst the bacteria builds up? If so how long can I expect the smell to last for?


We would recommend you call Marsh Industries on 01933 654582

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Marsh Uni-Gem Septic Tank to Sewage Treatment Conversion Unit - 12 Person

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Marsh Uni-Gem Septic Tank to Sewage Treatment Conversion Unit - 12 Person

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