What is a Klargester Sewage Treatment System? At CM Environmental Ltd , we specialise in supplying and installing high-quality wastewater treatment solutions tailored to properties without access to mains drainage. One term you might encounter when researching off-grid sewage systems is “Klargester”  — and here’s what it means, why it matters, and how we can support your project. Sewage Treatment Made Simple A Klargester  is a branded packaged sewage treatment plant , widely