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GRAF Carat Cesspool Tank For Wastewater 4800L | G70025

£1,230.00
£1,476.00 (inc VAT)
£1,230.00 (exc VAT)

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Product Description

This product is delivered directly from the supplier, lead times vary.

 

The GRAF Carat 4800L Cesspool Tank is a durable and reliable underground wastewater storage solution designed for properties without access to a mains sewer connection. Manufactured from high-quality, rotationally moulded polyethylene (PE), this robust cesspool tank offers a generous 4,800-litre capacity and is engineered for long-term performance in demanding ground conditions.

Its innovative groundwater-stable design allows installation in areas with high water tables, while the shallow-profile construction reduces excavation requirements, helping to lower installation costs and time. Lightweight yet exceptionally strong, the tank is easy to transport and install without compromising structural integrity.

The self-anchoring design helps resist flotation caused by groundwater, eliminating the need for additional concrete anchoring in many installations. The versatile tank can also be repurposed for rainwater harvesting in the future, making it a flexible long-term investment.

Key Benefits

  • Large 4,800-litre wastewater storage capacity
  • Ideal for properties without mains sewer access
  • Groundwater-stable construction for challenging installation sites
  • Shallow dig design reduces excavation costs
  • Lightweight PE construction for easier transport and installation
  • Self-anchoring tank helps prevent flotation in high groundwater conditions
  • Corrosion-resistant and maintenance-friendly design
  • Manufactured from durable, high-quality polyethylene
  • Can be converted for rainwater harvesting applications
  • Long service life with minimal maintenance requirements

 

Specification Value
Model G70025
Maximum Capacity 4800L
Dimensions (L x W x H) 2280 x 1985 x 1820 mm
Weight (Empty) 185 kg
Tank Design Life 50 Years
Tank Warranty 15 Years

 

4800l Drawing
Warranty GRAF
Installation Manual

SKU: TANCESSGRA003

Why Buy Your Tank from Direct Drainage?

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

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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

From choosing the right treatment plant to installation, maintenance and UK regulations, we've answered some of the most common questions to help you find the right solution for your property.

What is the difference between a septic tank and a sewage treatment plant?

A septic tank separates solids from wastewater before allowing the liquid to drain into a suitable drainage field. A sewage treatment plant goes a step further, using biological processes to treat wastewater to a higher standard before discharge. Sewage treatment plants are often the preferred choice where improved treatment performance is required.

What size sewage treatment plant do I need?

The correct size depends on the number of people your property is designed to accommodate, the expected wastewater flow and the type of property. Sewage treatment plants are commonly rated by Population Equivalent (PE). It's important to select a system with sufficient capacity to handle your property's requirements. Our team can help you choose a suitable system.

Do sewage treatment plants need electricity?

Most sewage treatment plants require electricity to operate components such as air blowers, pumps or control systems. However, power consumption varies depending on the manufacturer and model. Some systems use low-energy technology to help minimise running costs. Always check the individual product specifications before purchasing.

How often does a sewage treatment plant need emptying?

Sewage treatment plants require periodic desludging to remove accumulated solids. This is commonly carried out at least once a year, although the frequency depends on the system, usage and manufacturer's recommendations. Regular servicing and maintenance are also essential to maintain performance and help prevent costly breakdowns.

Do you supply replacement parts for sewage treatment plants?

Yes! At Direct Drainage, we supply a wide range of sewage treatment plant spare parts, including air blowers, diaphragms, filters and other essential components. Whether you're carrying out routine maintenance or replacing a faulty part, our team can help you identify a suitable replacement for your system.

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.