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Clearwater E12 BTA Sewage Treatment Plant 12 People


Product Ref: BTAUE3

Customer Offloading Free Delivery Free Site Survey HIAB Available Below Ground, Sewage Below Ground, Sewage
  • Weight: 275.000kg, 285.000kg, 295.000kg, 305.000kg
  • Dimensions: W:1850mm H:2700mm, W:1850mm H:3200mm
  • Request a quote

    Do you require Commissioning?

    To ensure your system operates to maximum efficiency, we recommend tried and tested Commissioning by our own British Water and Safe Building trained engineers.

    Our unrivalled knowledge means that we are best placed to carry out bespoke assessments to get your system up and running. The commissioning will also provide you with a unique checklist against your system, ensuring your complete peace of mind and reassurance that your system's mechanical and electrical components are in good working order.

    The checks below will be carried out by a Kingspan Service Engineer and will only be checked if the unit has been installed in line with the provided installation guidelines.

    • Check Plant is level, 5 mm tolerance
    • Confirm the ground around the plant is level, flat and that the lid securely fastens
    • Confirm the panel has been mounted correctly
    • Make the required connections to the panel using correct glands
    • Make all electrical connections within the tank
    • Ensure all safety guards are fitted
    • Sat all greasomatics within the plant (if applicable)
    • Check belt/chain tension and alignment
    • Check pump float activates freely (pumped discharge only)
    • Check operation of sludge return pump (nitrification plants only)
    • Check direction of disc pack
    • Check levels within unit
    • Test and set any Alarms supplied with the unit


    If the BioTec BTAUE has been purchased, commissioning includes the above plus:

    • Check the air blower is secure
    • Set forward feed airlift (larger plants)
    • Make sure there is adequate air supply
    • Connect all airlines and set valves
    • Make sure BioZones have adequate air supply
    • Wire and set timer solenoid for sludge return (if applicable)



    On completion, they will provide a site specific commissioning certificate

    Find out more about what's included in the commissioning of your Clearwater pump station and arrange Commissioning, read Kingspan's dedicated guide to Commissioning today.

    *terms and conditions apply



    Product Description

    Clearwater E Range Sewage Treatment System 12 Person

    The Clearwater E Range is the economical off-mains solution for single houses and uses the tried and tested aerobic biological process for the treatment of domestic sewage.

    The Range now comes with improved effluent quality with higher BOD5 and TSS removal than older Clearwater E range models.

    Clearwater E Range sewage treatment systems are ideal for single/multiple houses and employ the well proven aerobic biological trickling filter process for the treatment of sewage.

    Easy to install, this Clearwater E12 system is suitable for a population of 12 people.

    Clearwater E12 - Key Features

    • Isolator & Failure Light
    • Easy to install and maintain with annual desludging.
    • Improved effluent quality with higher BOD5 and TSS removal than older Clearwater E range models.
    • Third party certified to EN12566-3 standard for assured performance
    • CE marked

    Technical Data

    • Population Equivalent:   12 person
    • Outside diameter:   1.85 m
    • BOD Load (kg/day):   0.36
    • Two inlet depth options to choose from: 1.0 m (as standard) and 1.5 m
    • Pipework diameter:   110 mm
    • Standard power supply:   Single phase
    • Blower (kW):  0.04
    • Weight (approximate):   275 kg (1.0 m Gravity) / 305 kg (1.5 m Pumped)
    • Pumped outlet: 50 mm MDPE compression fitting 

    Performance and Compliance

    • Certified to BS EN 12566 Part 3 standard.
    • BOD5 -96.2%; SS - 97%; Ammonia - 82.4%;
    • Fully CE marked in line with the CPR 2013.

    *Free Survey subject to distance - Please contact us from more information


    Please click on the following link to register your warranty.



    All our Clearwater tanks are for delivery by customer offload. This entails the customer to acquire the right manpower and/or machinery to help unload the tank/s from the delivery vehicle.

    If you require assistance with offloading, we may be able to offer a tail lift (lowers the tank to the ground) or HIAB (lorry with a mounted crane to winch the tank off the delivery vehicle). Please contact us if this is required for delivery.



    Product Details

    • Product Code: CL
    • Customer Offloading: Customer Offloading
    • Delivery: Free Delivery
    • Free Site Survey: Free Site Survey
    • HIAB Available: HIAB Available
    • Tank Use: Below Ground, Sewage


    Our shipping costs cover most of the UK - however, parts of England, Scottish Highlands and Islands including areas north of the Glasgow / Edinburgh border, Isle of Wight, Channel Islands, Isle of Man, Anglesey, Western Isles, Shetland Islands, Orkney Islands, Isles of Scilly, Northern Ireland and the Republic of Ireland may cost more.

    Please call before ordering if the delivery postcode is listed below. There may be additional shipping costs. AB, BT, CA, CT, DD, DG, EH, FK, G, GY, IM, IV, JE, KA, KW, KY, LD, LL, ML, PA, PH, PO 30-41 (Isle of Wight), SA, SY, TD, TN, TR, ZE Southern Ireland

    Our lead times should only be used as a guide and are subject to change.


    Unless a hi-ab delivery has been booked at additional cost, it is the customer's responsibility to offload with suitable equipment on the day of delivery and a failed delivery may result in additional charges.

    We recommend installers and/or plant hire & materials to install such as excavators, aggregates etc are not booked until you are in receipt of the goods. Tanks Direct cannot be held responsible for costs incurred due to unforeseen delays, please see our terms for more details.


    HIAB delivery will be required if you need the tank offloaded from the delivery vehicle. The driver will unload the tank from the vehicle to ground level, however this service is not to place the tank in situ, this will need to be arranged separately.

    If you have any questions regarding your delivery, please contact the Sales Team on 01643 703358.

    Returns Information

    Please note - Certain items may not be returnable, for example those made to order or for sanitary reasons. Please check the product page for more information.

    Customers may return items within 14 calendar days (as per our Terms & Conditions) - refer to section 7. **

    All Items must be returned unused, refunds cannot be issued for used or previously installed items.

    Please be aware that returning a tank can be complicated and expensive, so please check that you are ordering the correct item (we suggest checking the dimensions very carefully).

    If you wish to return goods, please complete the form on this page to provide further information.

    Once your request is approved, a valid Returns Authorisation Number (RAN) will be issued to initiate the returns process along with information on how & where to return your order along with any costs involved.

    Please DO NOT return any goods without this authorisation. Goods cannot be accepted without this.

    Returns are not accepted at our Minehead Office, please wait until we contact you before returning any goods.

    View Tanks Direct's return policy now.

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