Domestic Sewage Treatment Plant GRAF One2Clean 5 - 12 PE
*Free commissioning available - please see Terms and Conditions*
This wastewater treatment plant represents a step change in primary and secondary wastewater treatment. You may wish to read our Knowledge page on the changes to the General Binding rules on small sewage plant discharge here.
A reliable wastewater disposal system no longer needs to be complicated. With One2Clean, you will be able to take responsibility for the timely disposal of your waste water, while taking care of your budget and the environment.
One2clean dispenses with the unnecessary extras, making it a reliable solution:
- Only one tank with only one chamber required
- Less energy consumption and less wear
- No mechanical elements in the waste water
- No pumps in the waste water
- No electrical components in the waste water
- Incredibly little sewage sludge
- 3 years warranty on technology
- 15 years warranty on sewage reservoirs
One2clean is a clean solution
- One2clean only needs 3 steps to produce clear water
- One2clean is odourless
- One2clean already meets the needs of tomorrow
One2clean is excellent value for money
- Incredibly little sewage sludge
- Minimum maintenance costs
- Minimum power consumption
One2clean offers maximum safety and reliability
- Low space requirements
- Long warranty and lifetime
- Twice the buffer volume
- Logistical advantages
Dimensions
Please note, height can very dependent on the lid required.
Inhabitants |
Max daily flow (l/d) |
Volume (l) |
Length (mm) |
Height (mm) |
Width (mm) |
Weight (kg) |
4-5 | 750 | 3750 | 2280 | 1880 | 1680 | 150 |
6-7 | 1050 | 4800 | 2280 | 2110 | 1910 | 185 |
8-9 | 1350 | 6500 | 2390 | 2390 | 2190 | 220 |
If your query is related to an existing order please email in with your order number in the subject line. If you have a new residential enquiry please consult the online guides before calling as they may answer your question.
The delivery information page is divided into 1. Specific and 2. General delivery information below.
1. Specific Delivery Information relating to product lines- Small items dispatched daily with RM24 ~85% arriving next day
- Large items (UK made) typically 5 - 15 working days (Parcelforce/APC etc)
- 1,000 litre compact underground rainwater tank
- 250 litre Prestige large Plant Pot style planter Grey
- SAR40-TOP2 Wastewater Lifting station
- 250 litre Classic Slim Wall Water butt - Black Granite, Grey
- Hydraloop
- Green Roof sedum tray - pre planted option
- Madison 185 Litre rain barrel - Millstone
We're a Manchester based company and ship to the UK at our standard rates. Please get in touch requesting the delivery surcharge value if you are based in the Highlands or a UK island.
We no longer support ordering from the EU and Northern Ireland through the website. We can support ad hoc orders with limited liability.
Our design and Prestige range is available in the Netherlands, Ireland, Belgium, France, Germany, through our distributors.
Stock items will be dispatched on the day of order, if ordered before 1pm.
Letters are sent 1st class.
Parcels <2kg are shipped with Royal Mail 24 Tracked with the following target delivery times.
Guaranteed delivery can be arranged by advance agreement. This agreement is back to back with the courier and we will not be liable for any delays as per our terms.
A loss/replacement can only be pursued in line with the target delivery times of the courier or once the courier accept loss.
Bulky items (and pallet deliveries) are dispatched within 2-15 working days. We will request a contact number if this has not been provided at checkout.
Some items are made to order (bespoke) and details are given on the listing for dispatch times. If for any reason we anticipate a delay on our normal dispatch time we will contact you to let you know.
Occasionally there are delays. We shall not be liable for any direct or indirect losses, costs, damages or expenses incurred by you or any other person for any delays in delivery.
Missed deliveries where attempted delivery has been made usually result in re-deliveries the following day. The customer is responsible for organising re deliveries by contacting the courier direct.
Parcels/deliveries can only be "left out" if the delivering company allows that option. Parcelforce, for example, do not allow a parcel to be "left out".
We are an environment centric business and as such we try to minimise our waste. Our packaging is usually recycled and/or recyclable and we make efficient use of packaging to minimise wastage.
Covid delivery updates between 12.3.20 and 11.1.21 21 have been archived here.