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Septic Tanks

Septic Tanks

Basic Septic Tanks only partially treat sewage and discharge effluent of low quality. Many authorities in the UK & Ireland prohibit their use.

Septic Tanks may be installed (subject to consent) in applications where:

  • Soil is of suitable porosity.
  • Installation complies with Building Regulations (Approved Document H).
  • The installation will not contaminate any ditch, stream or other watercourse.

For more information regarding a more effective Sewage Treatment System, click here.

What products are available?

If you are not connected to mains drainage you have three options.

Alpha and Beta+ Range


The Klargester Alpha and Klargester Beta+ range of Septic Tanks only provides settlement for sewage solids. The liquid overflow requires further biological treatment in a suitably designed, correctly situated drainage field.

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Sigma Shallow Dig Septic

The Sigma septic tank will drastically reduce the time and cost of a septic tank installation. Its EN12566 Part 1 approved and 99.7% efficient.

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Sewage Treatment Plant

A full Sewage Treatment Plant with integral biological treatment technology produces far superior treated effluent - see our Klargester BioDisc® and Biotec™ range.

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Any product installation is dependent on obtaining regulatory approvals.

Case study

A treatment plant serving a 3-bedroom farmhouse

The client approached Kingspan Klargester to discuss the options for replacing a failing brick Septic Tank. Key criteria were to reduce frequency of tank-emptying visits and to use existing soakaway without the risk of blockage. Major concern was also to reduce pollution of surrounding streams and watercourses.

Contact us

Kingspan Klargester
College Road North
Aston Clinton, Aylesbury
HP22 5EW

Tel: 01296 633000
Fax: 01296 633001