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GRAF Carat Cesspool Tank 3750L | G70023
GRAF Carat Cesspool Tank 3750L | G70023
GRAF Carat Cesspool Tank 3750L | G70023

Over 17,000+ Happy Customers

GRAF Carat Cesspool Tank 3750L | G70023

£1,001.00

(exc VAT)
£1,001.00

(exc VAT)
Quantity

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The Graf Carat Cesspool Tank 3750L is a robust underground storage solution designed for safe and efficient wastewater management in locations without direct sewer connections. Its 3750-litre capacity offers ample volume for residential use, made from durable, high-quality materials to ensure long-lasting performance and resistance to environmental stress. Engineered for easy installation and minimal maintenance, this tank provides a reliable method for cesspool containment while meeting industry standards for safety and hygiene.


Product Features

  • Groundwater-stable Construction:  Specially engineered for challenging site conditions, including areas with high groundwater levels.
  • Shallow Installation: With a small-profile tank design, this sewage treatment system requires minimal excavation depth.
  • Lightweight Design for Easy Installation: Made from high-strength, rotationally moulded polyethylene (PE), the GRAF tank is exceptionally strong yet lightweight.
  • Self-Anchoring Tank Design: The tank’s integrated anti-floatation geometry allows it to naturally resist upward forces from groundwater, even when empty. This self-anchoring capability eliminates the need for separate concrete bases or heavy ballasting, further simplifying the installation and keeping costs down.
  • Dual-Purpose Tank: Can Be Reused for Rainwater Harvesting

 

Options & Accessories:

  • High Level Alarm: Battery operated alarm with an audible and visual warning to alert you when the tank needs emptying
  • Lid options: Pedestrian duty (standard) or vehicle duty up to 3.5t

 

Specification Value
Model G70023
Maximum Capacity 3750L
Dimensions (L x W x H) 2280 x 1755 x 1590 mm
Weight (Empty) 150 kg
Tank Design Life 50 Years
Tank Warranty 15 Years

 

PLEASE CONTACT US FOR AN ACCURATE LEAD TIME

sales@direct-drainage.co.uk

SKU: TANCESSGRA002

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Why Buy Your Tank from Direct Drainage?

Free Tank Delivery

Tanks ship direct from the manufacturer, with lead times varying by product.

Best Price Guarantee 

Found the same tank cheaper? Send us the quote and we’ll try to match it.

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Expert Tank Support

Need help choosing the right tank? Call our team on 01388 537050.
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CUSTOMER REVIEWS

Rated 4.8/5 by Direct Drainage Customers

Based on over 600 verified reviews

VERIFIED REVIEW

Very helpful from the start to the finish

Items were despatched quickly and arrived the next day. Would recommend.

Title

North Hayne Farm Cottages | 26 June 2026

VERIFIED REVIEW

Cheapest price I could find for the pump

Cheapest price I could find for the pump and delivery the next day what more could you want.

Title

Sam Jukes | 5 November 2025

VERIFIED REVIEW

Great service!

I ordered a septic tank it was delivered within a week and the delivery driver left it in the exact right place and time. Would definitely use this company again, thanks so much.

Title

Eve Harland | December 2025

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FAQs

Got questions? We’ve got the answer...

When will my order be dispatched?

Spare Parts Shipping
We ship in-stock spare parts the same day if ordered before 3pm. These orders are sent with DPD as standard and will be shipped on a Tracked Next-Day service.


Tanks & Supplier-Shipped Items

Tanks and certain spare parts are shipped directly from our suppliers. We aim to submit supplier orders to the supplier on the same day your order is placed to ensure prompt processing. 

How much is delivery?

Delivery costs vary depending on the type of product:

 

In-stock Spare Parts: £8.20 - shipped via DPD on a Tracked Next-Day service.
Supplier-shipped Spare Parts: £15 - dispatched directly from the supplier.
Tanks and Sewage Treatment Systems: Free Delivery to most mainland UK postcodes.

 

All delivery charges are calculated accurately at checkout.

I need help with placing my order.

No problem! Here are a few ways we can assist you:

Live Chat: Click the chat icon on the bottom right of the page to speak with our team instantly.
Call Us: Reach us at 01388 537050 during business hours for quick support.
Email: Send your query to sales@direct-drainage.co.uk, and we’ll respond promptly.

Do you stock all tanks and sewage treatment systems?

We do not stock tanks and treatment systems as standard. These are supplied directly from the manufacturer. The lead times of these systems will vary. If you need an accurate delivery date, please contact us on 01388 537050.

Are your prices inclusive of VAT?

It is important to note that all prices listed on our website exclude VAT. VAT will be calculated at checkout. 

I've found the same item somewhere cheaper, can you match the price?

We always aim to offer competitive pricing. If you've found the same item cheaper elsewhere, let us know — we'll do everything we can to match or even beat the price.

 

Contact us directly on 01388 537050 or drop us an email at sales@direct-drainage.co.uk.