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What is the cheapest septic tank we supply?

Our cheapest range of septic tanks is the Clearwater range, which comes in 2800l, 3800l and 4600l size options – however, these septic tanks come with a delivery charge of £80.00 + VAT (including offloading on site). Clearwater septic tanks are designed to meet both the installation requirements and the standards of discharge specified by BS 6297: 1983. Septic tanks are used for domestic sewage disposal where connection to a mains sewer is not practical. The septic tanks in the range all achieve a high degree of settlement, producing a quality of effluent for discharge to a land drainage system.

You may wish to consider the Klargester, Conder and Tricel range of septic tanks, all of which come with FREE UK delivery.

At Direct Drainage, we work hard to keep our prices competitive, offering excellent professional service and value for money to our customers. Septic tanks are a cost-effective option for domestic sewage disposal where connection to a mains sewer or discharge into a watercourse is not possible. Septic tanks must be connected to a land drainage system (commonly called a soakaway or drainage field), which means you must conduct a percolation test to ensure the ground conditions are appropriate. Find out more about conducting percolation tests in our Knowledge Base.

Alternatively, why not consider a sewage treatment system which produces effluent quality suitable for discharge directly into a stream or watercourse. If you need further assistance, get in touch on 01388 537050, email us at or Live Chat with us on the bottom-right of the homepage, and we’ll be happy to help!