Tanks For Everything
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  • £5,480.00 ex. VAT
  • £6,576.00 inc. VAT
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Description

The Marsh Gemini is a combined sewage treatment system that has been designed to significantly reduce the number of nitrates and phosphates discharged during wastewater treatment. The Gemini is a single plant that reduces the footprint and installation costs compared to installing individual plants. Gemini models have been independently tested and certified as providing an 84% biological reduction of nitrates and reducing phosphates to just 0.26mg/l. Gemini models use sequence batch reactor (SBR) technology and include a control panel so the plant can be controlled and monitored remotely - when connected to WiFi. The controller allows the plant to be placed in an economy mode for times of low demand and can also notify you of error reports.

The Gemini 10 model is suitable for a property with a population equivalent to 7-10 people, so it will serve up to and include a 8-bedroom house (or 2 x 3 beds). This plant complies with BS EN 12566-3 and BS EN 12566-7.

Gemini systems are supplied with gravity outlets and external air blower housing..

 

Features of the Gemini: 

  • Combines the efficiencies of the Nutra-Lite and Phos-Lite in one tank
  • Easy to install, as the Gemini is a single unit
  • Uses SBR technology for superior nitrate reduction
  • Efficient waste treatment
  • Economy mode
  • Achieves 84% biological removal of nitrates
  • Reduces phosphates to 0.26mg/l
  • Secure telemetry and alarm monitoring
  • Rigorously independently tested to comply with BS EN12566-3 & BS EN12566 -7
  • Stabilising feet for easier transportation and installation
  • Unique "keying in" lip helps anchor into concrete or granular backfill

Specification: 

Domestic Population* (PE): 7 - 10
Standard Invert (mm): 700
Standard Outlet Gravity (mm): 770
Length (mm): 3652
Width (mm): 1962
Height (mm): 2283
Weight in Kg (empty): 350
Pipe Work (mm): 110
Material: GRP
Lid Rating: Pedestrian
Air Blower Warranty (yrs): 2
Tank Warranty (yrs): 25
Testing Standard: BSEN 12566-3 & BSEN 12566-7
CE Marked: Yes

* based upon up to 150 litres per head per day. All dimensions +/- 50mm due to manufacturing tolerances.

Discharge Quality:

Criteria National Minimum Standard  Marsh Gemini
BOD5 (mg/l) 20 1.62
SS (mg/l) 30 4.3
N-NH4 (mg/l) 20 0.38
TNb (mg/l)   10.5
Ptot (mg/l):   0.26

 

Delivery:

FREE delivery of this product includes the whole of the UK Mainland and is subject to suitable access for a large goods vehicle. The customer is responsible for providing suitable mechanical offloading facilities (e.g. JCB excavator or loader) to offload this tank. If you need any assistance please contact us prior to purchase - please remember we are here to help! 

Monday 22nd June 2026
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