The Controlfix clean out provides fast access to backwater valves via a clean-out opening. It is available for floor slab installation and can also be installed in waterproof concrete by using an extension piece with central flange and an elastomer waterproofing membrane. The integrated drainage function ensures that any surface water that arises, for example due to a pipe break, will be pumped into the sewer despite there being backwater.
The standard option is to install the Staufix SWA, Staufix FKA backwater valves and the Pumpfix F backwater pumping station — and this can even be done subsequently many years later (retrofittable).
The radioactive noble gas radon is a natural element that is present virtually everywhere in our earth's crust. If it accumulates in a high concentration within enclosed spaces, it can be hazardous to humans: Radon is considered an environmental risk factor for lung cancer. The Controlfix for floor slab installation helps to prevent this health hazard from entering buildings. The backwater valve has been tested and certified as radon-proof.
