Harlequin manufacture a range of both Septic Tanks and Sewage Treatment Plants:
Septic Tanks are available in capacities of 2700, 3800 and 4500 litres and serve populations from single inhabitants to 14 people (depending upon the capacity). Harlequin septic tanks meet the requirements of BS EN12566-1. Septic tanks discharge to drainage fields and are not allowed to discharge to a watercourse.
Hydroclear Sewage Treatment Plants are available in capacities from 1-6 people to 50 people. Hydroclear and CAP treatment plants are approved to BS-EN12566-3 and can discharge directly to a watercourse, subject to an environmental permit.