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Clearwater 54,000 Litre Septic Tank Underground Wastewater Treatment System

£13,719.00

(exc VAT)

£13,719.00

(exc VAT)

Quantity

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

 

The Clearwater 54,000 Litre Septic Tank is a high-capacity underground wastewater treatment solution designed for residential developments, commercial premises, agricultural sites, holiday parks, and other properties requiring reliable off-mains drainage. With a substantial 54,000 litre (54m³) capacity, this septic tank provides efficient primary treatment of domestic sewage, making it an ideal choice for applications with high wastewater volumes.

 

Designed to meet the installation requirements and discharge standards specified by BS 6297:1983, the Clearwater 54,000L Septic Tank offers dependable long-term performance with minimal maintenance requirements. Its large storage capacity allows wastewater to remain in the tank long enough for solids to separate naturally from liquids, helping to improve treatment efficiency before discharge to a suitable drainage field.

 

The septic tank operates using a proven single-chamber treatment process. Sewage enters the tank where heavier solids settle at the bottom, forming sludge. Naturally occurring anaerobic bacteria begin to break down the organic waste, while clarified liquid effluent flows through the outlet pipe and into a drainage field for further treatment. This simple and effective wastewater treatment method makes septic tanks a trusted solution for properties without access to mains sewer connections.

 

Suitable for domestic, commercial, agricultural, and industrial applications, the Clearwater 54,000 Litre Septic Tank provides an efficient and cost-effective wastewater management solution. When planning installation, the unit should generally be situated at least 7 metres from any dwelling and, where possible, a minimum of 10 metres from nearby watercourses. Suitable access should also be available for tanker emptying and routine maintenance.

 

Key Features

  • Large 54,000 litre (54m³) septic tank capacity
  • Ideal for residential, commercial, agricultural, and industrial applications
  • Suitable for properties without mains drainage
  • Designed to comply with BS 6297:1983 requirements
  • Efficient single-chamber wastewater treatment system
  • Supports effective sewage settlement and treatment
  • Suitable for high-volume wastewater applications
  • Reliable, low-maintenance operation
  • Long service life
  • Designed for underground installation


Typical Applications

  • Residential housing developments
  • Commercial buildings and offices
  • Agricultural and farming facilities
  • Holiday parks and campsites
  • Industrial sites
  • Rural and remote properties


 

The Clearwater 54,000 Litre Septic Tank offers a robust and dependable solution for large-scale wastewater treatment. Combining high-capacity performance, efficient sewage separation, and long-term reliability, it is an excellent choice for developments and properties requiring a durable and effective off-mains drainage system.

 

 18,000L - 79,000 Installation & Operation Guidelines
18,000L - 79,000L Septic Tank Drawing

SKU: TANSILACLE047

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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

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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.

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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.