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GRAF One2Clean Sewage Treatment Plant 7PE
£2,168.05

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GRAF One2Clean 7PE Sewage Treatment System – High-Efficiency Off-Mains Wastewater Solution

PLEASE CALL 01388 537 050 FOR AN ACCURATE LEAD TIME

The GRAF One2Clean 7PE is a high-performance, single-tank domestic wastewater treatment system designed for properties with up to 7 residents. Utilising advanced SBR (Sequencing Batch Reactor) lifting technology, this system achieves up to 99% pollutant removal efficiency, making it one of the most effective solutions on the market for domestic off-mains sewage treatment.

Graf One2Clean 7PE Drawing

Graf One2Clean Installation Guide

Graf UK Brochure

Ebara Optima Pump Specification

Graf One2Clean PIA Certificate 

Graf One2Clean IPS Pumped Option Information

Free Commissioning

Graf One2Clean Log Book

The system is CE Certified and fully compliant with EN12566-3, offering excellent effluent quality that meets and exceeds regulatory standards. It’s also nutrient neutrality-friendly, ideal for sensitive discharge areas. With low energy consumption (just 46 kWh per person annually) and reduced sludge production, the One2Clean provides an efficient and cost-effective long-term investment for homeowners.

No specialist wiring is needed on-site, and the unit is suitable for dry ground installations using granular base and backfill. An integrated sample chamber and user-friendly controls ensure easy maintenance and monitoring.

FREE commissioning is available with every system, carried out by an accredited GRAF UK partner.


Enjoy a 15-year warranty on the tank shell and 2-year warranty on the internal technology when installed and serviced by a GRAF-certified technician.


Key Benefits:

Strong, injection-moulded construction (15-year tank warranty)

2-year technology warranty

Quiet operation

Built-in, self-cleaning sampling point

Plug-and-play installation – no onsite wiring required

Ultra-low power usage – just 46 kWh per person, per year

Stable for groundwater levels up to the tank’s midline

Compact control panel for indoor or optional outdoor kiosk


Specifications:

Specification Value
Model G50002
Population Capacity Up to 7 People
Dimensions (L x W x H) 2280 x 1985 x 2250–2450 mm
Inlet/Outlet Diameter DN100 / 110
Weight (Empty) 185 kg
Inlet Invert 675–875 mm
Outlet Invert 675–875 mm
Air Compressor Power 58 Watts
Compressor Noise 36 dBA
BOD 7 mg/l
Suspended Solids 14 mg/l
Ammonium (NH4-N) 0.5 mg/l

Options & Accessories:

Outlet type: Gravity or pumped

Invert depth extensions: Available with standard, 310mm, or trimmable risers

Lid options: Pedestrian duty (standard) or vehicle duty up to 3.5t

Maxi Dome cover: Required for vehicle-duty installation

Outdoor controller kiosk: Available for installations more than 20m from the building


Need help selecting the right system? Call our expert team on 01388 537 050 or email us with your requirements – we’re happy to help.

Graf UK Standard Dropship Terms & Conditions


Delivery Charges

All prices include for delivery to site on UK mainland unless otherwise stated.

Please check for deliveries into Cornwall, Mid & Northern Scotland & Isles, IOW & IOM as additional delivery charges may be applicable.


Delivery Access

We generally deliver on our own vehicles, 6mtr sprinters.

However, we do use external hauliers who may deliver on larger vehicles.

Please ensure, if there are any site restrictions e.g. restricted access, specific time frames for deliveries, that we are informed when delivery date is confirmed.


Off-Loading

Off-loading by the customer unless agreed otherwise. Tanks 1500L-7500L are generally strapped to a pallet for forklift off-load, slings can also be used. Larger tanks - forklift off-load (subject to tank length), slings can also be used.

Please ensure site has offload facilities on the advised delivery date.

Moffit off-loading can be arranged at additional cost, please request details.


Re-Scheduling Delivery Date

A minimum 48 hours’ notice before specified delivery date is required to cancel and reschedule the delivery.

Otherwise, charges may apply.


Date & Time Of Delivery

Delivery lead time is 5-7 working days from receipt of payment on all orders unless otherwise advised.

We will email you confirmation of delivery date.

Delivery by Graf UK will arrive between 7am-5pm.

The delivery driver will call you before arrival to advise ETA.

We cannot advise an ETA, only the driver can advise when he/she calls.


Restocking charge

25% standard restocking charge.

Also transport costs for the original delivery would be deducted + collection cost.

Any credit would be subject to QA approval that the returned goods are in re-saleable condition. 

If you are unsure or need help we are here to help! Give our friendly team a call on 01388 537 050 or email sales@direct-drainage.co.uk

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