Retrofitting ClearFox® nature bio module
For updating treatment chambers / TGL small sewage treatment plants and multicompartment septic tanks
Older cesspools and multi-compartment septic tanks (built before 1990 on the basis of TGL 7762) and traditional “self-made solutions” are still used by thousands of people, according to current statistics.
According to analyzes of associations for sewage treatment and expert studies, the largest proportion of plants does not meet the treatment requirements of the EU and may not safely meet structural requirements of the EU and other countries.
Many home owners will need to build a new fully biological small sewage treatment plant or restore their existing septic tank at the latest plus retrofitting of a fully biological cleaning stage.
The bio module can also be incorporated into an existing treatment or collecting chamber (man holes). This requires an inspection of the existing wastewater plant by a specialised company and a confirmation of its fitness. Often the biomodule is just placed behind the existing waste water system to improve the effluentrate.
In order to retrofit an existing chamber, the following is required:
- Proof of durability
- Proof of structural safety
- Proof of water tightness
You will find further data in the general building-authority approval and the BDZ information about the assessment of the fitness for restoration of existing tanks for small sewage treatment plants from mineral building material BDZ – I 104, which was published in germany.