Harlequin CAP12 Sewage Treatment Plant

Harlequin CAP12 Sewage Treatment Plant


Product Ref: CAP12

Customer Offloading MDPE Below Ground, Sewage Below Ground, Sewage
  • Weight: 460.000kg
  • Dimensions: L:2900mm W:1620mm H:2000mm
  • Estimated Lead time 5-10 Working Days

    Home Delivery

    UK mainland delivery from £99.00 ex VAT

    check delivery cost

    £3,195.00 ex VAT
    (£3,834.00 inc VAT)
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    Product Description

    12 Person Harlequin CAP12 Sewage Treatment Plant 

    The Harlequin CAP12 is a compact sewage treatment plant designed specifically for larger domestic or small commercial installations of up to 12 people.
    It is a continuous aeration plant which operates using a unique bio-media system and delivers a pollutant removal level of 96.2% whilst also combatting common problems associated with small packaged domestic plants.

    The Harlequin continuous aeration plant range is available in 6 / 9 / 12 Person options. 

    Standard Features:

    • Moulded from durable medium density polyethylene material

    • 110 mm inlet and outlet connections

    • 110 mm services duct

    • Integrated lifting eyes for ease of handling and installation

    • Fully secured 600x450mm pedestrian duty, flush fitting manhole cover complies with statutory regulations

    • Above ground air blower housing delivers more reliable and efficient operation, and allows easy access for maintenance

    • Easy access to the bubble diffuser within the tank

    • A MBBR system - there is no fixed media, eliminating blockages

    • Virtually silent operation

    • Compact size and light weight reduces installation costs

    • Mechanically reliable with no moving parts or electrics within the tank

    • Certified to EN12566-3

    Optional Equipment:

    • Air blower function alarm

    • Pumped outlet

    • 300 mm manhole riser(s). Max 3 risers (800 mm) on a gravity tank or 2 risers (550 mm) on a pumped outlet+ Maximum invert level 2 m. Use 1200 mm concrete rings to achieve inverts below max. number of risers.


    Deliveries will be made by articulated lorry, and it is the customer's responsibility to ensure safe and adequate access plus off loading. Off loading of heavy items should be made by fork lift or similar heavy lifting equipment.
    If there is any doubt about delivery access or off loading, please contact us to discuss the options available.

    Product Details

    • Product Code: HQ
    • Customer Offloading: Customer Offloading
    • Material: MDPE
    • Tank Use: Below Ground, Sewage

    Customer Reviews

    By on
    "I cant comment on the quality of this product as it has yet to be installed."
    Star Rating 4


    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

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

    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.

    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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