Klargester Sigma 9,150 Litre Shallow Dig Septic Tank

Free Delivery
Klargester Sigma 9,150 Litre Shallow Dig Septic Tank

Klargester Sigma 9,150 Litre Shallow Dig Septic Tank

Product Ref: STH091

Customer Offloading Free Delivery HIAB Available Below Ground, Sewage Below Ground, Sewage
  • Volume: 9150ltr
  • Dimensions: L:3960mm
  • Lid Size: 600
  • Diameter: 1920mm
  • Home Delivery

    UK mainland delivery from FREE ex VAT

    check delivery cost

    from £2,400.00 ex VAT
    (£2,880.00 inc VAT)
    Product Description

    Klargester Sigma Shallow Dig 9150 Litre Septic tank

    This 47 person Klargester shallow dig septic tank is the perfect choice for when sewage treatment plants, which discharge cleaned effluent into the ground, are not suitable.

    This tank will store the effluent of 47 people, perfect for off-mains domestic properties, holiday homes and static caravans.

    Supplied with manhole cover, pedestrian loading, up to 1.5 tonne.

    Galvanised steel cover with black polypropylene frame.

    To reduce costs and installation time this Klargester Sigma septic tank is shallow dig, meaning you need to excavate less of the ground where it will be installed. Save on labour costs even more on dry sites too as this septic tank can be backfilled with pea shingles. There''s no need to worry about the durability of this septic tank with pea shingles or concrete backfill as it''s manufactured from strong, chemically resistant and watertight GRP.

    Supplied Complete with:

    • 9150 Litre GRP Septic Tank
    • Manhole Cover and Frame
    • Inlet Invert Depth of 0.5m as Standard But Can Be increased To 1.0m or 1.5m
    • Comes with 110mm pipework as standard. Other sizes are available, please contact us if this is required.
    • 99.7% efficient and approved to EN12566-1, these septic tanks are the perfect upgrade from traditional cesspools as they tend to last longer, increase hygiene and have improved efficiency in the treatment of waste

    Extension Necks

    The shallow dig septic tanks have two manhole shafts for ease of emptying.

    Tanks have an inlet invert depth of 0.5m as standard. Upon request this may be extended up to 1.5m via neck GRP riser pieces. Risers will be required for each access shaft.

    Septic Tank Regulations

    For more information on the Septic tank regulations please click here


    Should you have a requirement for larger sized Septic Tanks, please contact our Sales Team directly on 0333 256 5065


    All the Klargester 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.


    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 for 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.

    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 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.

    Please click here to request a return

    Product Specification

    • Product Code: KLA
    • Customer Offloading: Customer Offloading
    • Delivery: Free Delivery
    • Diameter: 1920mm
    • HIAB Available: HIAB Available
    • Lid Size: 600
    • Tank Use: Below Ground, Sewage

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