Klargester BioAir 4 Economy Sewage Treatment Plant - 12 Person

Product Ref: BIA4UGEK

Fast Delivery, Customer Offloading Fast Delivery, Customer Offloading Plastic, Made in Britain Plastic, Made in Britain Below Ground
  • Weight: 500.000kg
  • Dimensions: L:3240mm
  • Diameter: 1900mm
  • Home Delivery

    United Kingdom mainland delivery from FREE ex VAT

    FREE STANDARD Delivery for KLARGESTER Tanks - Via articulated lorry, customer to off-load (Postcode exclusions apply to Highlands & Islands)

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    Klargester BioAir 4 Economy Sewage Treatment Plant - 12 Person Specifications



    BioAir 2

    Population Equivalent



    Daily Flow



    Daily Load

    kg BOD5/d



    Outlet invert












    Installation depth



    Inlet invert



    Cover Height



    Inlet pipe work*



    Outlet pipe work*



    Material Construction

    MDPE or GRP


    Unit Weight




    Klargester BioAir 4 Economy Sewage Treatment Plant - 12 Person Description

    Klargester BioAir 4 Economy Sewage Treatment Plant for up to 12 People    

    The new Klargester BioAir 4 wastewater treatment plant uses aerated technology to deliver a high level of water discharge quality.

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

    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 (High Level Alarm optional on IPS unit)
    • 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.




    Klargester BioAir 4 Economy Sewage Treatment Plant - 12 Person Specification

    • Product Code: KLA
    • Delivery Options: Fast Delivery, Customer Offloading
    • Made From: Plastic, Made in Britain
    • Tank Type: Below Ground

    Klargester BioAir 4 Economy Sewage Treatment Plant - 12 Person 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.

    To find out more about what's included in the Commissioning of your Kingspan Klargester product, or to arrange Commissioning, please click here for more information

    *terms and conditions apply

    Klargester BioAir 4 Economy Sewage Treatment Plant - 12 Person Delivery Information


    The delivery of a tank can be confusing as each manufacturer offers a slightly different service and lead time. Please refer to our Delivery Information page.  Standard tank deliveries are "kerbside" which means the tank will be delivered to the kerb only and not positioned further. Should you have specific delivery requirements or restrictions, please contact us to discuss.


    Tanks Over 2500L – Articulated Lorry – Customer Offload:

    These tanks will be delivered on an articulated vehicle (approximately 16.5m long x 2.6m wide x 3m high) which has no offloading on board, it is the customer's responsibility to offload the tank, which may require a telehandler / forklift.  Curtain sided vehicles are also used, so please note that if there are obstacles or hanging branches on the road to the delivery site etc, the driver may refuse to drive the vehicle to the customer's location due to the possibility of damaging the vehicle. Please let us know if there are any obstructions before delivery, so we can arrange alternative transport.


    18 Tonne Tail Lift HGV

    This vehicle is the size of the largest bin lorries (for comparison) and is approximately 8.2m long x 2.6m wide x 4m high, often curtain sided so please note that if there are hanging branches etc, these vehicles will not attempt to drive down due to the possibility of damaging the vehicle and so it is recommended that a smaller vehicle is requested. Tanks will be lowered to the ground but not positioned as this is a kerbside delivery.  If a smaller vehicle is required, please email us at sales@fueltankshop.co.uk quoting your order number and name.


    HIAB Delivery

    HIAB delivery is available but must be requested and there will be an additional cost for this service. If a HIAB delivery is required, please email us at sales@fueltankshop.co.uk quoting your order number and name, and we will come back to you with a price for this service.



    Most accessories will be delivered within 1-3 working days (certain products and postcodes may take longer, please check the product page for update to date information). If you require them quicker, we can on occasions offer a next day service (please contact us to discuss). If the item(s) are out of stock, we will advise you of the expected lead time, and you will of course have the opportunity to cancel with a full refund.



    Klargester BioAir 4 Economy Sewage Treatment Plant - 12 Person Returns 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 Fuel Tank Shop return policy now.

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