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Clearwater BioTec BTA1 Sewage Treatment System (up to 6 people)

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Direct Drainage Reviews
 Sewage Treatment Best Price Guarantee 2 Year Warranty*


The Clearwater BioTec BTA1 Sewage Treatment Plant is an economical off-mains drainage system suitable for upto 6 people, ideal for a single dwelling. The BioTec uses a well-proven aerobic biological process for the treatment of sewage. 

The Clearwater BioTec range is available as a Gravity fed system or with an Integral Pump (IPS) and with either a 1000mm or 1500mm invert depth level. An isolator and failure light are fitted as standard.


 Clearwater BioTec BTA Brochure

 Clearwater BioTec BTA1 Gravity Drawing

 Clearwater BioTec BTA1 Pumped Drawing

 Clearwater BioTec BTA1 Installation Guide

Clearwater BioTec BTA1 Certificate


Get the right size Clearwater BioTec - up to 6 peopleup to 9 peopleup to 12 peopleup to 18 peopleup to 25 people.


Key advantages of the  Clearwater BioTec BTA1 

  • BioTec BTA1 running costs of only £147 per year (based on 0.269p per KwH, 1.5KwH p/day)
  • Includes a isolator and failure light
  • Easy to install and maintain
  • 2 year warranty*
  • Certified to EN12566-3 and CE marked

Features of the Clearwater BioTec BTA1 Sewage Treatment System

  • Suitable for up to 6 people
  • BOD5 -96.2%; SS - 97%; Ammonia - 82.4%
  • Single Phase
  • Suitable for 110mm underground drainage pipework
  • 1.8m diameter
  • BOD Load 0.36kg/day


    *Terms apply


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