Graf One2Clean Sewage Treatment Plant For 7 Inhabitants

FREE Delivery*
FREE Delivery Customer To Offload | 1-2 Weeks
GrafSKU: G50002/G50003

£2,200.00 exc. VAT
Sale price£2,640.00

Tax included



This Graf One2Clean Waster Water Treatment Tank is designed for 7 persons. The wastewater arrives directly in the biological zone without the need for pumping processes. Aeration of the entire container leads to immediate wastewater activation. The micro-organisms begin the biological cleaning process without delay. Aeration is interrupted by the control unit, the activated sludge sinks to the bottom. A clear water zone develops in the upper part of the container. The final process of the one2clean produces an odourless, clear treated water for extraction to soakaway or waterway. The one2clean wastewater treatment system can achieve sustainable discharge values with an efficiency factor of up to 99%.


  • System conformity: EN 12566-3 
  • Purifying technology: fully biological SBR lifting technology
  • Maintenance interval: 1–2 per year
  • Warranty for underground tank: 15 years
  • Warranty for purifying technology: 3 years

Delivered Complete With:

  • 4800 Litre Underground Tank
  • System Control Panel
  • Compresses Air Lift
  • Pedestrian Lid (optional Cast iron Lid for Vehicle Loading)
  • Telescopic Dome Shaft
  • Gravity Outlet Fitting

Extra Information Downloads

Technical Drawing

Declaration Of Performance

Graf One2clean Installation Manual 

Graf Waste Water Treatment Brochure

Key Benefits of the Graf One2clean Systems

  • Excellent cleaning performance Even during load fluctuations and underload
  • Great value for money
  • Double sludge storage volume
  • Low sludge removal
  • Uses less power than a 9w energy saving bulb (per person)
  • Up to 99% efficiency factor

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