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GRAF 11PE Shallow-Dig Septic Tank

GRAF 11PE Septic Tank

Carat Septic Tank PE11
SKU: G50078
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  • Description

    GRAF 11PE Septic Tank

    The GRAF 11PE septic tank is a two-chamber underground tank that collects and settles wastewater from properties of up to 11 people that are not connected to mains drainage. Solids settle and break down in the first chamber while the second chamber provides further settlement, allowing the partially-treated effluent to discharge to a soakaway or reed bed drainage field.

    Lightweight, shallow-dig design

    Manufactured from tough injection-moulded polypropylene, the GRAF 11PE tank is far lighter than concrete alternatives, so it is quicker and safer to handle and install. The shallow-dig profile reduces excavation depth and groundworks, while a height-adjustable telescopic dome shaft brings the lockable cover neatly to ground level.

    Key features

    • Two-chamber settlement tank for up to 11 people
    • Lightweight polypropylene - easy handling and installation
    • Shallow-dig format reduces excavation costs
    • Height-adjustable telescopic dome shaft and lockable cover
    • Groundwater-stable and corrosion resistant
    • Granular backfill - no concrete surround needed on most sites
    • Discharges to a soakaway or reed bed

    Septic tank or sewage treatment plant?

    A septic tank provides primary settlement only, so under the Environment Agency General Binding Rules its outflow must discharge to a drainage field or soakaway rather than directly to a watercourse. Where a site has no suitable soakaway, or direct discharge to a stream or ditch is required, a GRAF One2Clean sewage treatment plant is the appropriate alternative as it produces a much cleaner, fully-treated effluent.

    Installation and maintenance

    The tank is bedded on a gravel base and surrounded with granular backfill, keeping installation fast and avoiding a concrete surround on most domestic sites. Routine care is limited to periodic emptying by a licensed waste carrier; correct sizing, siting and desludging keep the 11PE system compliant and trouble-free for years.

    Applications and Usage

    The GRAF 11PE septic tank is well suited to rural homes, holiday lets and off-grid properties where a soakaway or drainage field is available and ground conditions permit. It offers a proven, low-maintenance way to manage domestic wastewater away from the mains sewer network.

    Learn more about GRAF products here.


  • Delivery

    There may be an additional charge for delivery of items outside UK mainland and offshore addresses; under these circumstances, please contact us for an updated quote on delivery before placing your order. Further payment may still be required for larger items – Please get in touch with us and we can arrange an updated invoice to reflect this. Your purchase with us will be held and stock allocated.

    This includes Scotland, the Highlands and Islands, Northern Ireland, the Isle of Wight and the Isle of Man.

    Postcodes including (but not limited to)  DD, PH, IV, KW, HS, AB, PA, KA, ML, EH, KY, FK PO (PO – Isle of Wight)  and G. 

    If access to the delivery address is restricted, please advise when placing the order.  This will allow us to arrange for a suitably sized delivery vehicle.  The customer is responsible for arranging for large items to be offloaded from the delivery vehicle at the customer’s premises.  Please allow up to 10 working days for delivery.

    Our suppliers arrange delivery at the source, so carriage charges may vary based on your postcode.  We will happily provide you with a delivery quote; just call us on 01722 442446.

    Next-Day Delivery is not Guaranteed  – The order Cut-off for Qualifying next-day delivery addresses is 3pm.  But please contact us as some orders can still be fulfilled after this time.

  • Returns Policy

    In accordance with United Kingdom and European law, customers have an unconditional right to cancel an order for a full refund from Tank Services up to 14 days after the goods are received by you.

    If a customer wishes to return an item and cancel an order with Tank Services, please contact us within the period outlined above to arrange for the goods to be returned at cost to you. It is not Tank Services’ responsibility to pay for the return of your goods  (see T&Cs for more information ).

    Please take care when ordering the correct product, as the cost of returning tanks and bulky goods can be expensive.

    It is the customer’s responsibility to ensure that good care is taken of the goods whilst in their possession.  Goods must be returned to Tank Services in a suitable resale condition and unused as determined by the Supplier.  Please see our standard Terms & Conditions for further details.

    For BUSINESS Customers & Bespoke items; any refund will be less an administration fee of 20% + VAT of the total order value.

SKU: G50078
Graf Tanks Logo

GRAF 11PE Shallow-Dig Septic Tank

GRAF 11PE Septic Tank


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length:
2280mm
width:
1755mm
height:
2220mm
capacity:
3750
weight:
175
brand:
Graf
graf lid:
Pedestrian Loading Lid, Vehicle Loading Lid
  • Enquire About Stock or Availability

    Your Full Name*

    Postcode For Delivery*

    Your Phone Number*

    Your Email Address*

    Your Enquiry*

    Got a Technical Question About This Product?