Klargester BioAir 7 Economy Gravity Sewage Treatment Plant - 25 Person


Product Ref: BIA7UGEK

Customer Offloading Free Delivery Free Site Survey HIAB Available GRP Below Ground, Sewage Below Ground, Sewage
  • Weight: 1250.000kg
  • Dimensions: L:5550mm
  • Diameter: 1920mm
  • Home Delivery

    UK mainland delivery from FREE ex VAT

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    BioAir 7


    Population Equivalent




    Daily Flow




    Daily Load


    kg BOD5/d




    Outlet invert
















    Installation depth




    Inlet invert






    Inlet pipe work*




    110 dia


    Outlet pipe work*




    110 dia


    Material Construction






    Unit Weight





    ** Tank weights based on 500mm Invert








    Product Description

    Klargester BioAir 7 Economy Gravity Sewage Treatment Plant for up to 25 People    


    The new Klargester BioAir 7 gravity fed wastewater treatment plant uses aerated technology to deliver a high level of water discharge quality.

    Klargester BioAir Economy models are supplied with an isolator switch with power failure light (in the blower box) and should be mounted externally at a point where it is easily visible from the property.

    Offering flexible installation options to suit a variety of domestic sites and a low impact visual footprint, Klargester BioAir Economy is an affordable choice for your domestic wastewater treatment solution.

    HIAB off load is available upon request.

    Product Benefits: 

    • Suitable for shallow dig Installations
    • Suitable for use in traffic areas (structural design advice required by others)
    • Low level visibility
    • No plastic media
    • Improved effluent quality – BOD5 97.5%
    • Third party tested to EN 12566-3
    • Easy to install and operate
    • Supplied with isolator switch and failure light
    • Affordable service plans available
    • Robust and Lightweight
    • 12 months warranty* (terms apply)



    Typical Applications

    • Single & Multiple Homes
    • Light Industrial Premises
    • Small Offices
    • Farms
    • Barn Conversions



    *Please click on the following link to register your warranty.














    Product Details

    • Product Code: KLA
    • Customer Offloading: Customer Offloading
    • Delivery: Free Delivery
    • Diameter: 1920mm
    • Free Site Survey: Free Site Survey
    • HIAB Available: HIAB Available
    • Material: GRP
    • Tank Use: Below Ground, Sewage

    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
    • Set 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



    On completion, they will provide a site specific commissioning certificate

    Smart Commissioning – Standard commissioning as scope of works, Inc supplied and fitted (at point of commissioning) Kingspan Smartserv Pro GSM telemetry alarm for complete peace of mind. 

    Smartserv alerts both Kingspan and designated contacts.  Includes 3 years Kingspan monitoring free of charge.

    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




    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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