Even in the most comfortable house or apartment, no one would stay for long if there was no trap to keep the smell out of the sewer system.
There is a trap between the sewer connection and the drain of all washbasins, sinks, showers, toilets and bathtubs, floor drains and condensation drains, preventing the smell of sewer in living rooms, bathrooms and kitchens.
But what happens if the siphon has too little or no water due to drying out? As described at the beginning, it starts to stink.
Our Stop Silent® SL13 backflow flap will solve this problem quickly and reliably.
The installation location in this situation would be in the cellar shaft.
In the basic closed position, the SL13 prevents sewer gases and foul odors from rising from the basement.
The odor problem is stopped permanently.